diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.071/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.071/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.071/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.071/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.071/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.071/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.071/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.071/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.071/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.071/META-INF/MANIFEST.MF
index 875b3aa..d5d3b1e 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.071/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.071/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.7.1
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.071;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
  org.eclipse.app4mc.amalthea.converters.common.base,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.072/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.072/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.072/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.072/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.072/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.072/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.072/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.072/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.072/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.072/META-INF/MANIFEST.MF
index ff58470..b2fed49 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.072/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.072/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.7.2
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.072;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.072
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.080/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.080/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.080/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.080/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.080/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.080/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.080/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.080/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.080/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.080/META-INF/MANIFEST.MF
index 1637a85..f710b74 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.080/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.080/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.8.0
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.080;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.080
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.081/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.081/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.081/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.081/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.081/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.081/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.081/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.081/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.081/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.081/META-INF/MANIFEST.MF
index 1e8455a..318418b 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.081/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.081/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.8.1
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.081;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.081
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.082/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.082/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.082/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.082/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.082/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.082/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.082/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.082/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.082/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.082/META-INF/MANIFEST.MF
index 01ef434..3162fdf 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.082/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.082/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.8.2
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.082;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.082
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.083/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.083/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.083/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.083/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.083/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.083/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.083/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.083/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.083/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.083/META-INF/MANIFEST.MF
index ac79bfd..e116a11 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.083/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.083/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.8.3
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.083;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.083
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.090/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.090/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.090/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.090/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.090/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.090/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.090/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.090/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.090/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.090/META-INF/MANIFEST.MF
index 0274aba..ea2cece 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.090/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.090/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.9.0
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.090;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.090
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.091/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.091/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.091/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.091/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.091/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.091/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.091/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.091/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.091/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.091/META-INF/MANIFEST.MF
index 5151763..9f3200f 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.091/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.091/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.9.1
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.091;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.091
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.092/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.092/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.092/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.092/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.092/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.092/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.092/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.092/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.092/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.092/META-INF/MANIFEST.MF
index a0feccf..b465477 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.092/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.092/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.9.2
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.092;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.092
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.093/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.093/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.093/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.093/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.093/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.093/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.093/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.093/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.093/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.093/META-INF/MANIFEST.MF
index 2df076d..283b4d6 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.093/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.093/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.9.3
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.093;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.093
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.094/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.094/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.094/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.094/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.094/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.094/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.094/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.094/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.094/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.094/META-INF/MANIFEST.MF
index c42c062..bf97a64 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.094/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.094/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.9.4
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.094;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.094
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.095/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.095/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.095/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.095/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.095/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.095/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.095/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.095/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.095/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.095/META-INF/MANIFEST.MF
index 62d1a93..38e7505 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.095/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.095/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.9.5
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.095;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.095
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.096/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.096/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.096/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.096/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.096/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.096/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.096/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.096/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.096/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.096/META-INF/MANIFEST.MF
index 3c8472a..2f1fdfe 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.096/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.096/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.9.6
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.096;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.096
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.097/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.097/.classpath
index eca7bdb..e801ebf 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.097/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.097/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.097/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.097/.settings/org.eclipse.jdt.core.prefs
index 9f6ece8..7adc0fb 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.097/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.097/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.097/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.097/META-INF/MANIFEST.MF
index cf60e31..1c6335d 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.097/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.097/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 0.9.7
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.097
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.097
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.100/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.100/.classpath
index eca7bdb..e801ebf 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.100/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.100/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.100/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.100/.settings/org.eclipse.jdt.core.prefs
index 0fee6a9..a58ebdc 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.100/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.100/.settings/org.eclipse.jdt.core.prefs
@@ -1,9 +1,9 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
 org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
@@ -11,5 +11,5 @@
 org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.100/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.100/META-INF/MANIFEST.MF
index f8f88f2..66410bd 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.100/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.100/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 1.0.0
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.100
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.100
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.200/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.200/.classpath
index eca7bdb..e801ebf 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.200/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.200/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.200/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.200/.settings/org.eclipse.jdt.core.prefs
index 0fee6a9..a58ebdc 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.200/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.200/.settings/org.eclipse.jdt.core.prefs
@@ -1,9 +1,9 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
 org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
@@ -11,5 +11,5 @@
 org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.200/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.200/META-INF/MANIFEST.MF
index 5af0a40..c41d245 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.200/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.200/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 2.0.0
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.200
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.200
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.210/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.210/.classpath
index eca7bdb..e801ebf 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.210/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.210/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.210/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.210/.settings/org.eclipse.jdt.core.prefs
index 0fee6a9..a58ebdc 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.210/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.210/.settings/org.eclipse.jdt.core.prefs
@@ -1,9 +1,9 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
 org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
@@ -11,5 +11,5 @@
 org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.210/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.210/META-INF/MANIFEST.MF
index abb56fb..3f624cf 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.210/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.210/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 2.1.0
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.210
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.210
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.300/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.300/.classpath
index eca7bdb..e801ebf 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.300/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.300/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.300/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.300/.settings/org.eclipse.jdt.core.prefs
index 0fee6a9..a58ebdc 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.300/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.300/.settings/org.eclipse.jdt.core.prefs
@@ -1,9 +1,9 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
 org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
@@ -11,5 +11,5 @@
 org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.300/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.300/META-INF/MANIFEST.MF
index 313dd22..04f85ee 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.300/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.300/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters to 3.0.0
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.300
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.300
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.common/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.common/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.common/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.common/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.common/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.common/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.common/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.common/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.common/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.common/META-INF/MANIFEST.MF
index c808068..882cc2c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.common/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.common/META-INF/MANIFEST.MF
@@ -3,7 +3,7 @@
 Bundle-Name: APP4MC Amalthea Converters Common
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.common;singleton:=true
 Bundle-Version: 3.1.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Export-Package: org.eclipse.app4mc.amalthea.converters.common;version="3.1.0",
  org.eclipse.app4mc.amalthea.converters.common.base;version="3.1.0",
  org.eclipse.app4mc.amalthea.converters.common.converter;version="3.1.0",
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.headless.app/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.headless.app/.classpath
index eca7bdb..e801ebf 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.headless.app/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.headless.app/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.headless.app/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.headless.app/.settings/org.eclipse.jdt.core.prefs
index d4e2006..96342b3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.headless.app/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.headless.app/.settings/org.eclipse.jdt.core.prefs
@@ -9,8 +9,8 @@
 org.eclipse.jdt.core.compiler.annotation.nullable.secondary=
 org.eclipse.jdt.core.compiler.annotation.nullanalysis=disabled
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.APILeak=warning
 org.eclipse.jdt.core.compiler.problem.annotationSuperInterface=warning
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
@@ -22,6 +22,7 @@
 org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=disabled
 org.eclipse.jdt.core.compiler.problem.discouragedReference=warning
 org.eclipse.jdt.core.compiler.problem.emptyStatement=ignore
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=ignore
 org.eclipse.jdt.core.compiler.problem.fallthroughCase=ignore
@@ -67,6 +68,7 @@
 org.eclipse.jdt.core.compiler.problem.redundantSuperinterface=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBePotentiallyStatic=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBeStatic=ignore
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.problem.specialParameterHidingField=disabled
 org.eclipse.jdt.core.compiler.problem.staticAccessReceiver=warning
 org.eclipse.jdt.core.compiler.problem.suppressOptionalErrors=disabled
@@ -105,5 +107,5 @@
 org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.headless.app/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.headless.app/META-INF/MANIFEST.MF
index ad73fb7..9eee1b1 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.headless.app/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.headless.app/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.headless.app
 Bundle-Version: 3.1.0.qualifier
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.headless.app
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
  org.eclipse.app4mc.amalthea.converters.common.utils,
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.help/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.help/META-INF/MANIFEST.MF
index 341d1ea..a1dc85f 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.help/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.help/META-INF/MANIFEST.MF
@@ -5,3 +5,4 @@
 Bundle-Version: 3.1.0.qualifier
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.eclipse.help
+Bundle-RequiredExecutionEnvironment: JavaSE-11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.ui/.classpath b/plugins/org.eclipse.app4mc.amalthea.converters.ui/.classpath
index b862a29..ca3785c 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.ui/.classpath
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.ui/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.ui/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.amalthea.converters.ui/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.ui/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.ui/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.amalthea.converters.ui/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.amalthea.converters.ui/META-INF/MANIFEST.MF
index 905a392..c8caa1f 100644
--- a/plugins/org.eclipse.app4mc.amalthea.converters.ui/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.amalthea.converters.ui/META-INF/MANIFEST.MF
@@ -12,7 +12,7 @@
  org.eclipse.jface;bundle-version="3.14.0",
  org.eclipse.osgi.services;bundle-version="3.7.0",
  org.eclipse.e4.core.di
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.ui
 Import-Package: javax.inject;version="1.0.0",
  org.eclipse.app4mc.amalthea.converters.common,
diff --git a/plugins/org.eclipse.app4mc.util.sessionlog.console/.classpath b/plugins/org.eclipse.app4mc.util.sessionlog.console/.classpath
index eca7bdb..e801ebf 100644
--- a/plugins/org.eclipse.app4mc.util.sessionlog.console/.classpath
+++ b/plugins/org.eclipse.app4mc.util.sessionlog.console/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.util.sessionlog.console/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.util.sessionlog.console/.settings/org.eclipse.jdt.core.prefs
index 9f6ece8..7adc0fb 100644
--- a/plugins/org.eclipse.app4mc.util.sessionlog.console/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.util.sessionlog.console/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.util.sessionlog.console/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.util.sessionlog.console/META-INF/MANIFEST.MF
index 6d3e085..15249bd 100644
--- a/plugins/org.eclipse.app4mc.util.sessionlog.console/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.util.sessionlog.console/META-INF/MANIFEST.MF
@@ -5,7 +5,7 @@
 Bundle-Version: 3.1.0.qualifier
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.util.sessionlog.console
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-ActivationPolicy: lazy
 Import-Package: org.eclipse.app4mc.util.sessionlog;version="1.1.0",
  org.osgi.service.component.annotations;version="[1.3.0,2.0.0)";resolution:=optional
diff --git a/plugins/org.eclipse.app4mc.util.sessionlog.eclipse/.classpath b/plugins/org.eclipse.app4mc.util.sessionlog.eclipse/.classpath
index eca7bdb..e801ebf 100644
--- a/plugins/org.eclipse.app4mc.util.sessionlog.eclipse/.classpath
+++ b/plugins/org.eclipse.app4mc.util.sessionlog.eclipse/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.util.sessionlog.eclipse/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.util.sessionlog.eclipse/.settings/org.eclipse.jdt.core.prefs
index 9f6ece8..7adc0fb 100644
--- a/plugins/org.eclipse.app4mc.util.sessionlog.eclipse/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.util.sessionlog.eclipse/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.util.sessionlog.eclipse/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.util.sessionlog.eclipse/META-INF/MANIFEST.MF
index 1129048..7df695b 100644
--- a/plugins/org.eclipse.app4mc.util.sessionlog.eclipse/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.util.sessionlog.eclipse/META-INF/MANIFEST.MF
@@ -5,7 +5,7 @@
 Bundle-Version: 3.1.0.qualifier
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.util.sessionlog.eclipse
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Import-Package: org.eclipse.app4mc.util.sessionlog;version="1.1.0",
  org.osgi.service.component.annotations;version="[1.3.0,2.0.0)";resolution:=optional
 Require-Bundle: org.eclipse.equinox.common;bundle-version="3.10.0",
diff --git a/plugins/org.eclipse.app4mc.util.sessionlog.file/.classpath b/plugins/org.eclipse.app4mc.util.sessionlog.file/.classpath
index eca7bdb..e801ebf 100644
--- a/plugins/org.eclipse.app4mc.util.sessionlog.file/.classpath
+++ b/plugins/org.eclipse.app4mc.util.sessionlog.file/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.util.sessionlog.file/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.util.sessionlog.file/.settings/org.eclipse.jdt.core.prefs
index 9f6ece8..7adc0fb 100644
--- a/plugins/org.eclipse.app4mc.util.sessionlog.file/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.util.sessionlog.file/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.util.sessionlog.file/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.util.sessionlog.file/META-INF/MANIFEST.MF
index 9311000..fb97a4f 100644
--- a/plugins/org.eclipse.app4mc.util.sessionlog.file/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.util.sessionlog.file/META-INF/MANIFEST.MF
@@ -5,7 +5,7 @@
 Bundle-Version: 3.1.0.qualifier
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.util.sessionlog.file
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-ActivationPolicy: lazy
 Import-Package: org.eclipse.app4mc.util.sessionlog;version="1.1.0",
  org.osgi.service.component.annotations;version="[1.3.0,2.0.0)";resolution:=optional,
diff --git a/plugins/org.eclipse.app4mc.util.sessionlog/.classpath b/plugins/org.eclipse.app4mc.util.sessionlog/.classpath
index eca7bdb..e801ebf 100644
--- a/plugins/org.eclipse.app4mc.util.sessionlog/.classpath
+++ b/plugins/org.eclipse.app4mc.util.sessionlog/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/plugins/org.eclipse.app4mc.util.sessionlog/.settings/org.eclipse.jdt.core.prefs b/plugins/org.eclipse.app4mc.util.sessionlog/.settings/org.eclipse.jdt.core.prefs
index 9f6ece8..7adc0fb 100644
--- a/plugins/org.eclipse.app4mc.util.sessionlog/.settings/org.eclipse.jdt.core.prefs
+++ b/plugins/org.eclipse.app4mc.util.sessionlog/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.eclipse.app4mc.util.sessionlog/META-INF/MANIFEST.MF b/plugins/org.eclipse.app4mc.util.sessionlog/META-INF/MANIFEST.MF
index f45f544..fecb027 100644
--- a/plugins/org.eclipse.app4mc.util.sessionlog/META-INF/MANIFEST.MF
+++ b/plugins/org.eclipse.app4mc.util.sessionlog/META-INF/MANIFEST.MF
@@ -5,7 +5,7 @@
 Bundle-Version: 3.1.0.qualifier
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.util.sessionlog
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-ActivationPolicy: lazy
 Export-Package: org.eclipse.app4mc.util.sessionlog;version="3.1.0"
 Import-Package: org.osgi.service.component.annotations;version="[1.3.0,2.0.0)";resolution:=optional
diff --git a/releng/org.eclipse.app4mc.converters.product/amalthea_migration.bndrun b/releng/org.eclipse.app4mc.converters.product/amalthea_migration.bndrun
index 900d041..e359b92 100644
--- a/releng/org.eclipse.app4mc.converters.product/amalthea_migration.bndrun
+++ b/releng/org.eclipse.app4mc.converters.product/amalthea_migration.bndrun
@@ -1,4 +1,4 @@
--runee: JavaSE-1.8
+-runee: JavaSE-11
 -runfw: org.eclipse.osgi
 -runsystemcapabilities: ${native_capability}
 
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.071.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.071.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.071.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.071.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.071.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.071.tests/.settings/org.eclipse.jdt.core.prefs
index 9f6ece8..7adc0fb 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.071.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.071.tests/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.071.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.071.tests/META-INF/MANIFEST.MF
index cf2cee0..74ce0e5 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.071.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.071.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.071.tests
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.071
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Bundle-Vendor: Eclipse APP4MC
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.071.tests
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.072.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.072.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.072.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.072.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.072.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.072.tests/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.072.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.072.tests/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.072.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.072.tests/META-INF/MANIFEST.MF
index e634b74..62f889d 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.072.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.072.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.072.tests
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.072
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.072.tests
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.080.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.080.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.080.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.080.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.080.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.080.tests/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.080.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.080.tests/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.080.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.080.tests/META-INF/MANIFEST.MF
index b2ad1ac..672ff3c 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.080.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.080.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.080.tests
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.080
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.080.tests
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.081.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.081.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.081.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.081.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.081.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.081.tests/.settings/org.eclipse.jdt.core.prefs
index 9f6ece8..7adc0fb 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.081.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.081.tests/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.081.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.081.tests/META-INF/MANIFEST.MF
index 024fb4d..2560a9c 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.081.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.081.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.081.tests
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.081
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.081.tests
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.082.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.082.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.082.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.082.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.082.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.082.tests/.settings/org.eclipse.jdt.core.prefs
index 9f6ece8..7adc0fb 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.082.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.082.tests/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.082.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.082.tests/META-INF/MANIFEST.MF
index 4eb6afc..b6e15be 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.082.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.082.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.082.tests
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.082
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.082.tests
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.083.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.083.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.083.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.083.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.083.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.083.tests/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.083.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.083.tests/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.083.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.083.tests/META-INF/MANIFEST.MF
index 5fb05b2..bf50eed 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.083.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.083.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.083.tests
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.083
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.083.tests
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.090.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.090.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.090.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.090.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.090.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.090.tests/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.090.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.090.tests/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.090.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.090.tests/META-INF/MANIFEST.MF
index 37aa7b3..cb4a788 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.090.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.090.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.090.tests
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.090
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.090.tests
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.091.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.091.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.091.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.091.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.091.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.091.tests/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.091.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.091.tests/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.091.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.091.tests/META-INF/MANIFEST.MF
index 0d31305..408e56e 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.091.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.091.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.091.tests
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.091
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.091.tests
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.092.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.092.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.092.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.092.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.092.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.092.tests/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.092.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.092.tests/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.092.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.092.tests/META-INF/MANIFEST.MF
index 4a391df..0009126 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.092.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.092.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.092.tests
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.092
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.092.tests
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.093.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.093.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.093.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.093.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.093.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.093.tests/.settings/org.eclipse.jdt.core.prefs
index 9f6ece8..7adc0fb 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.093.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.093.tests/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.093.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.093.tests/META-INF/MANIFEST.MF
index e9371df..1f63f34 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.093.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.093.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.093.tests
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.093
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.093.tests
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.094.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.094.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.094.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.094.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.094.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.094.tests/.settings/org.eclipse.jdt.core.prefs
index fa60702..827742b 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.094.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.094.tests/.settings/org.eclipse.jdt.core.prefs
@@ -9,8 +9,8 @@
 org.eclipse.jdt.core.compiler.annotation.nullable.secondary=
 org.eclipse.jdt.core.compiler.annotation.nullanalysis=disabled
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.APILeak=warning
 org.eclipse.jdt.core.compiler.problem.annotationSuperInterface=warning
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
@@ -22,6 +22,7 @@
 org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=disabled
 org.eclipse.jdt.core.compiler.problem.discouragedReference=warning
 org.eclipse.jdt.core.compiler.problem.emptyStatement=ignore
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=ignore
 org.eclipse.jdt.core.compiler.problem.fallthroughCase=ignore
@@ -67,6 +68,7 @@
 org.eclipse.jdt.core.compiler.problem.redundantSuperinterface=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBePotentiallyStatic=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBeStatic=ignore
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.problem.specialParameterHidingField=disabled
 org.eclipse.jdt.core.compiler.problem.staticAccessReceiver=warning
 org.eclipse.jdt.core.compiler.problem.suppressOptionalErrors=disabled
@@ -105,5 +107,5 @@
 org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.094.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.094.tests/META-INF/MANIFEST.MF
index d6e1037..8b6d924 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.094.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.094.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.094.tests
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.094
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.094.tests
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.095.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.095.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.095.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.095.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.095.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.095.tests/.settings/org.eclipse.jdt.core.prefs
index 9f6ece8..7adc0fb 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.095.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.095.tests/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.095.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.095.tests/META-INF/MANIFEST.MF
index 4753424..1055079 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.095.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.095.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.095.tests
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.095
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.095.tests
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.096.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.096.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.096.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.096.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.096.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.096.tests/.settings/org.eclipse.jdt.core.prefs
index e2860e9..11265a3 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.096.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.096.tests/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.096.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.096.tests/META-INF/MANIFEST.MF
index 22a77c6..918f9c2 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.096.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.096.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.096.tests
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.096
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.096.tests
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.097.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.097.tests/.classpath
index 3e5654f..a42a828 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.097.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.097.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.097.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.097.tests/.settings/org.eclipse.jdt.core.prefs
index d4e2006..96342b3 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.097.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.097.tests/.settings/org.eclipse.jdt.core.prefs
@@ -9,8 +9,8 @@
 org.eclipse.jdt.core.compiler.annotation.nullable.secondary=
 org.eclipse.jdt.core.compiler.annotation.nullanalysis=disabled
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.APILeak=warning
 org.eclipse.jdt.core.compiler.problem.annotationSuperInterface=warning
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
@@ -22,6 +22,7 @@
 org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=disabled
 org.eclipse.jdt.core.compiler.problem.discouragedReference=warning
 org.eclipse.jdt.core.compiler.problem.emptyStatement=ignore
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=ignore
 org.eclipse.jdt.core.compiler.problem.fallthroughCase=ignore
@@ -67,6 +68,7 @@
 org.eclipse.jdt.core.compiler.problem.redundantSuperinterface=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBePotentiallyStatic=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBeStatic=ignore
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.problem.specialParameterHidingField=disabled
 org.eclipse.jdt.core.compiler.problem.staticAccessReceiver=warning
 org.eclipse.jdt.core.compiler.problem.suppressOptionalErrors=disabled
@@ -105,5 +107,5 @@
 org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.097.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.097.tests/META-INF/MANIFEST.MF
index 8785b1e..cb1287e 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.097.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.097.tests/META-INF/MANIFEST.MF
@@ -5,7 +5,7 @@
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.097
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.097.tests
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Import-Package: org.eclipse.app4mc.amalthea.converters.common.converter,
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.100.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.100.tests/.classpath
index 3e5654f..a42a828 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.100.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.100.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.100.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.100.tests/.settings/org.eclipse.jdt.core.prefs
index d4e2006..96342b3 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.100.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.100.tests/.settings/org.eclipse.jdt.core.prefs
@@ -9,8 +9,8 @@
 org.eclipse.jdt.core.compiler.annotation.nullable.secondary=
 org.eclipse.jdt.core.compiler.annotation.nullanalysis=disabled
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.APILeak=warning
 org.eclipse.jdt.core.compiler.problem.annotationSuperInterface=warning
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
@@ -22,6 +22,7 @@
 org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=disabled
 org.eclipse.jdt.core.compiler.problem.discouragedReference=warning
 org.eclipse.jdt.core.compiler.problem.emptyStatement=ignore
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=ignore
 org.eclipse.jdt.core.compiler.problem.fallthroughCase=ignore
@@ -67,6 +68,7 @@
 org.eclipse.jdt.core.compiler.problem.redundantSuperinterface=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBePotentiallyStatic=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBeStatic=ignore
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.problem.specialParameterHidingField=disabled
 org.eclipse.jdt.core.compiler.problem.staticAccessReceiver=warning
 org.eclipse.jdt.core.compiler.problem.suppressOptionalErrors=disabled
@@ -105,5 +107,5 @@
 org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.100.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.100.tests/META-INF/MANIFEST.MF
index 34bdd5d..54eb96e 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.100.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.100.tests/META-INF/MANIFEST.MF
@@ -5,7 +5,7 @@
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.100
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.100.tests
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Import-Package: org.eclipse.app4mc.amalthea.converters.common.converter,
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.200.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.200.tests/.classpath
index 3e5654f..a42a828 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.200.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.200.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.200.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.200.tests/.settings/org.eclipse.jdt.core.prefs
index d4e2006..96342b3 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.200.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.200.tests/.settings/org.eclipse.jdt.core.prefs
@@ -9,8 +9,8 @@
 org.eclipse.jdt.core.compiler.annotation.nullable.secondary=
 org.eclipse.jdt.core.compiler.annotation.nullanalysis=disabled
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.APILeak=warning
 org.eclipse.jdt.core.compiler.problem.annotationSuperInterface=warning
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
@@ -22,6 +22,7 @@
 org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=disabled
 org.eclipse.jdt.core.compiler.problem.discouragedReference=warning
 org.eclipse.jdt.core.compiler.problem.emptyStatement=ignore
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=ignore
 org.eclipse.jdt.core.compiler.problem.fallthroughCase=ignore
@@ -67,6 +68,7 @@
 org.eclipse.jdt.core.compiler.problem.redundantSuperinterface=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBePotentiallyStatic=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBeStatic=ignore
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.problem.specialParameterHidingField=disabled
 org.eclipse.jdt.core.compiler.problem.staticAccessReceiver=warning
 org.eclipse.jdt.core.compiler.problem.suppressOptionalErrors=disabled
@@ -105,5 +107,5 @@
 org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.200.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.200.tests/META-INF/MANIFEST.MF
index c71a55e..df32bef 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.200.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.200.tests/META-INF/MANIFEST.MF
@@ -5,7 +5,7 @@
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.200
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.200.tests
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Import-Package: org.eclipse.app4mc.amalthea.converters.common.converter,
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.210.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.210.tests/.classpath
index 3e5654f..a42a828 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.210.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.210.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.210.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.210.tests/.settings/org.eclipse.jdt.core.prefs
index d4e2006..96342b3 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.210.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.210.tests/.settings/org.eclipse.jdt.core.prefs
@@ -9,8 +9,8 @@
 org.eclipse.jdt.core.compiler.annotation.nullable.secondary=
 org.eclipse.jdt.core.compiler.annotation.nullanalysis=disabled
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.APILeak=warning
 org.eclipse.jdt.core.compiler.problem.annotationSuperInterface=warning
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
@@ -22,6 +22,7 @@
 org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=disabled
 org.eclipse.jdt.core.compiler.problem.discouragedReference=warning
 org.eclipse.jdt.core.compiler.problem.emptyStatement=ignore
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=ignore
 org.eclipse.jdt.core.compiler.problem.fallthroughCase=ignore
@@ -67,6 +68,7 @@
 org.eclipse.jdt.core.compiler.problem.redundantSuperinterface=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBePotentiallyStatic=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBeStatic=ignore
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.problem.specialParameterHidingField=disabled
 org.eclipse.jdt.core.compiler.problem.staticAccessReceiver=warning
 org.eclipse.jdt.core.compiler.problem.suppressOptionalErrors=disabled
@@ -105,5 +107,5 @@
 org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.210.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.210.tests/META-INF/MANIFEST.MF
index 2749d62..8ee4945 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.210.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.210.tests/META-INF/MANIFEST.MF
@@ -5,7 +5,7 @@
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.210
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.210.tests
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Import-Package: org.eclipse.app4mc.amalthea.converters.common.converter,
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.300.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.300.tests/.classpath
index 3e5654f..a42a828 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.300.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.300.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.300.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.300.tests/.settings/org.eclipse.jdt.core.prefs
index d4e2006..96342b3 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.300.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.300.tests/.settings/org.eclipse.jdt.core.prefs
@@ -9,8 +9,8 @@
 org.eclipse.jdt.core.compiler.annotation.nullable.secondary=
 org.eclipse.jdt.core.compiler.annotation.nullanalysis=disabled
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.APILeak=warning
 org.eclipse.jdt.core.compiler.problem.annotationSuperInterface=warning
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
@@ -22,6 +22,7 @@
 org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=disabled
 org.eclipse.jdt.core.compiler.problem.discouragedReference=warning
 org.eclipse.jdt.core.compiler.problem.emptyStatement=ignore
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=ignore
 org.eclipse.jdt.core.compiler.problem.fallthroughCase=ignore
@@ -67,6 +68,7 @@
 org.eclipse.jdt.core.compiler.problem.redundantSuperinterface=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBePotentiallyStatic=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBeStatic=ignore
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.problem.specialParameterHidingField=disabled
 org.eclipse.jdt.core.compiler.problem.staticAccessReceiver=warning
 org.eclipse.jdt.core.compiler.problem.suppressOptionalErrors=disabled
@@ -105,5 +107,5 @@
 org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.300.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.300.tests/META-INF/MANIFEST.MF
index df0a533..5d59a7e 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.300.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.300.tests/META-INF/MANIFEST.MF
@@ -5,7 +5,7 @@
 Bundle-Version: 3.1.0.qualifier
 Fragment-Host: org.eclipse.app4mc.amalthea.converters.300
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.300.tests
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Require-Bundle: org.junit;bundle-version="4.12.0"
 Import-Package: org.eclipse.app4mc.amalthea.converters.common.converter,
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.common.tests/.classpath b/tests/org.eclipse.app4mc.amalthea.converters.common.tests/.classpath
index 52b5d44..7498416 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.common.tests/.classpath
+++ b/tests/org.eclipse.app4mc.amalthea.converters.common.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.common.tests/.settings/org.eclipse.jdt.core.prefs b/tests/org.eclipse.app4mc.amalthea.converters.common.tests/.settings/org.eclipse.jdt.core.prefs
index fa60702..827742b 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.common.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/tests/org.eclipse.app4mc.amalthea.converters.common.tests/.settings/org.eclipse.jdt.core.prefs
@@ -9,8 +9,8 @@
 org.eclipse.jdt.core.compiler.annotation.nullable.secondary=
 org.eclipse.jdt.core.compiler.annotation.nullanalysis=disabled
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.APILeak=warning
 org.eclipse.jdt.core.compiler.problem.annotationSuperInterface=warning
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
@@ -22,6 +22,7 @@
 org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=disabled
 org.eclipse.jdt.core.compiler.problem.discouragedReference=warning
 org.eclipse.jdt.core.compiler.problem.emptyStatement=ignore
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=ignore
 org.eclipse.jdt.core.compiler.problem.fallthroughCase=ignore
@@ -67,6 +68,7 @@
 org.eclipse.jdt.core.compiler.problem.redundantSuperinterface=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBePotentiallyStatic=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBeStatic=ignore
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.problem.specialParameterHidingField=disabled
 org.eclipse.jdt.core.compiler.problem.staticAccessReceiver=warning
 org.eclipse.jdt.core.compiler.problem.suppressOptionalErrors=disabled
@@ -105,5 +107,5 @@
 org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/tests/org.eclipse.app4mc.amalthea.converters.common.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.app4mc.amalthea.converters.common.tests/META-INF/MANIFEST.MF
index cadfcb9..5ac8322 100644
--- a/tests/org.eclipse.app4mc.amalthea.converters.common.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.app4mc.amalthea.converters.common.tests/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.amalthea.converters.common.tests
 Bundle-Version: 3.1.0.qualifier
 Automatic-Module-Name: org.eclipse.app4mc.amalthea.converters.common.tests
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Vendor: Eclipse APP4MC
 Import-Package: org.eclipse.app4mc.amalthea.converters.common,
  org.eclipse.app4mc.amalthea.converters.common.base,