diff --git a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.impl/META-INF/MANIFEST.MF b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.impl/META-INF/MANIFEST.MF
index df1ecd2..6988dba 100644
--- a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.impl/META-INF/MANIFEST.MF
+++ b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.impl/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.app4mc.emf.metamodelviewer.sphinx.impl;singleton:=true
 Bundle-Version: 0.9.8.qualifier
 Automatic-Module-Name: org.eclipse.app4mc.emf.metamodelviewer.sphinx.impl
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Require-Bundle: org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper,
  org.eclipse.emf.ecore,
  org.eclipse.sphinx.emf
diff --git a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper/.classpath b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper/.classpath
index eca7bdb..e801ebf 100644
--- a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper/.classpath
+++ b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper/.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/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper/.settings/org.eclipse.jdt.core.prefs b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper/.settings/org.eclipse.jdt.core.prefs
index 0c68a61..7adc0fb 100644
--- a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper/.settings/org.eclipse.jdt.core.prefs
+++ b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper/.settings/org.eclipse.jdt.core.prefs
@@ -1,7 +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.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/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper/META-INF/MANIFEST.MF b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper/META-INF/MANIFEST.MF
index a5822f8..b682dfa 100644
--- a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper/META-INF/MANIFEST.MF
+++ b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper/META-INF/MANIFEST.MF
@@ -4,6 +4,6 @@
 Bundle-SymbolicName: org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper;singleton:=true
 Bundle-Version: 0.9.8.qualifier
 Automatic-Module-Name: org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Export-Package: wrapper
 Require-Bundle: org.eclipse.emf.ecore;bundle-version="2.20.0"
diff --git a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer/.classpath b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer/.classpath
index eca7bdb..e801ebf 100644
--- a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer/.classpath
+++ b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer/.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/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer/.settings/org.eclipse.jdt.core.prefs b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer/.settings/org.eclipse.jdt.core.prefs
index 0c68a61..7adc0fb 100644
--- a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer/.settings/org.eclipse.jdt.core.prefs
+++ b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer/.settings/org.eclipse.jdt.core.prefs
@@ -1,7 +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.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/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer/META-INF/MANIFEST.MF b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer/META-INF/MANIFEST.MF
index b65cd56..46413ff 100644
--- a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer/META-INF/MANIFEST.MF
+++ b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.metamodelviewer/META-INF/MANIFEST.MF
@@ -11,7 +11,7 @@
  org.eclipse.emf.ecore,
  org.eclipse.emf.ecore.xmi,
  org.eclipse.app4mc.emf.metamodelviewer.sphinx.wrapper
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-Activator: org.eclipse.app4mc.emf.metamodelviewer.base.Activator
 Bundle-ActivationPolicy: lazy
 Export-Package: org.eclipse.app4mc.emf.metamodelviewer.base,
diff --git a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.viewer.plantuml/.classpath b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.viewer.plantuml/.classpath
index eca7bdb..e801ebf 100644
--- a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.viewer.plantuml/.classpath
+++ b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.viewer.plantuml/.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/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.viewer.plantuml/.settings/org.eclipse.jdt.core.prefs b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.viewer.plantuml/.settings/org.eclipse.jdt.core.prefs
index 0c68a61..7adc0fb 100644
--- a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.viewer.plantuml/.settings/org.eclipse.jdt.core.prefs
+++ b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.viewer.plantuml/.settings/org.eclipse.jdt.core.prefs
@@ -1,7 +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.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/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.viewer.plantuml/META-INF/MANIFEST.MF b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.viewer.plantuml/META-INF/MANIFEST.MF
index 0138028..70089d1 100644
--- a/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.viewer.plantuml/META-INF/MANIFEST.MF
+++ b/eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emf.viewer.plantuml/META-INF/MANIFEST.MF
@@ -20,7 +20,7 @@
  org.eclipse.e4.ui.workbench,
  org.eclipse.e4.core.services,
  org.eclipse.core.resources
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-ActivationPolicy: lazy
 Import-Package: javax.annotation;version="1.2.0",
  javax.inject;version="1.0.0",
diff --git a/eclipse-tools/emf-graphical-viewer/pom.xml b/eclipse-tools/emf-graphical-viewer/pom.xml
index 8e7e9b1..e682646 100644
--- a/eclipse-tools/emf-graphical-viewer/pom.xml
+++ b/eclipse-tools/emf-graphical-viewer/pom.xml
@@ -13,8 +13,9 @@
   <name>Eclipse APP4MC EMF Viewers</name>
  
   <properties>
-    <tycho.version>2.0.0</tycho.version>
-    
+    <tycho.version>3.0.3</tycho.version>
+    <java.version>11</java.version>
+
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
   </properties>
@@ -53,8 +54,8 @@
 				<version>${tycho.version}</version>
 				<configuration>
 					<verbose>true</verbose>
-					<source>1.8</source>
-					<target>1.8</target>
+					<source>${java.version}</source>
+					<target>${java.version}</target>
 				</configuration>
 			</plugin>