Switch to Java 11

Change-Id: I7c0dd8a8b6667e88dd3f3d8917e04bde2c27810c
Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.images/+/190604
Tested-by: Alexander Kurtakov <akurtako@redhat.com>
Reviewed-by: Alexander Kurtakov <akurtako@redhat.com>
diff --git a/org.eclipse.images.renderer/.classpath b/org.eclipse.images.renderer/.classpath
index 83dd2f4..32f3561 100644
--- a/org.eclipse.images.renderer/.classpath
+++ b/org.eclipse.images.renderer/.classpath
@@ -10,6 +10,7 @@
 		<attributes>
 			<attribute name="optional" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
+			<attribute name="test" value="true"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
@@ -17,7 +18,7 @@
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
-	<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">
 		<attributes>
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
diff --git a/org.eclipse.images.renderer/pom.xml b/org.eclipse.images.renderer/pom.xml
index b2d3648..d62f7cb 100644
--- a/org.eclipse.images.renderer/pom.xml
+++ b/org.eclipse.images.renderer/pom.xml
@@ -87,8 +87,8 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>3.6.1</version>
 				<configuration>
-					<source>1.8</source>
-					<target>1.8</target>
+					<source>11</source>
+					<target>11</target>
 				</configuration>
 			</plugin>
 			<plugin>