diff --git a/resources/tests/org.eclipse.core.tests.resources.saveparticipant/.classpath b/resources/tests/org.eclipse.core.tests.resources.saveparticipant/.classpath
index 3e5654f17eb..a42a828e04a 100644
--- a/resources/tests/org.eclipse.core.tests.resources.saveparticipant/.classpath
+++ b/resources/tests/org.eclipse.core.tests.resources.saveparticipant/.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/resources/tests/org.eclipse.core.tests.resources.saveparticipant/.settings/org.eclipse.jdt.core.prefs b/resources/tests/org.eclipse.core.tests.resources.saveparticipant/.settings/org.eclipse.jdt.core.prefs
index a698e59674f..a58ebdcad30 100644
--- a/resources/tests/org.eclipse.core.tests.resources.saveparticipant/.settings/org.eclipse.jdt.core.prefs
+++ b/resources/tests/org.eclipse.core.tests.resources.saveparticipant/.settings/org.eclipse.jdt.core.prefs
@@ -1,12 +1,15 @@
 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
 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/resources/tests/org.eclipse.core.tests.resources.saveparticipant/META-INF/MANIFEST.MF b/resources/tests/org.eclipse.core.tests.resources.saveparticipant/META-INF/MANIFEST.MF
index 251505bea76..a869ae4ee78 100644
--- a/resources/tests/org.eclipse.core.tests.resources.saveparticipant/META-INF/MANIFEST.MF
+++ b/resources/tests/org.eclipse.core.tests.resources.saveparticipant/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Eclipse Core Tests Save Participant
 Bundle-SymbolicName: org.eclipse.core.tests.resources.saveparticipant; singleton:=true
-Bundle-Version: 3.4.100.qualifier
+Bundle-Version: 3.5.0.qualifier
 Bundle-Vendor: Eclipse.org
 Export-Package: org.eclipse.core.tests.resources.saveparticipant
 Require-Bundle: org.eclipse.core.resources,
@@ -14,5 +14,5 @@ Require-Bundle: org.eclipse.core.resources,
  org.eclipse.core.tests.resources.saveparticipant2,
  org.eclipse.core.tests.resources.saveparticipant3,
  org.eclipse.core.filesystem
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-ActivationPolicy: lazy
diff --git a/resources/tests/org.eclipse.core.tests.resources.saveparticipant/pom.xml b/resources/tests/org.eclipse.core.tests.resources.saveparticipant/pom.xml
index 953a82619cd..d2c26dd230a 100644
--- a/resources/tests/org.eclipse.core.tests.resources.saveparticipant/pom.xml
+++ b/resources/tests/org.eclipse.core.tests.resources.saveparticipant/pom.xml
@@ -24,6 +24,6 @@
   </properties>
 
   <artifactId>org.eclipse.core.tests.resources.saveparticipant</artifactId>
-  <version>3.4.100-SNAPSHOT</version>
+  <version>3.5.0-SNAPSHOT</version>
   <packaging>eclipse-test-plugin</packaging>
 </project>
diff --git a/resources/tests/org.eclipse.core.tests.resources.saveparticipant1/.classpath b/resources/tests/org.eclipse.core.tests.resources.saveparticipant1/.classpath
index 3e5654f17eb..a42a828e04a 100644
--- a/resources/tests/org.eclipse.core.tests.resources.saveparticipant1/.classpath
+++ b/resources/tests/org.eclipse.core.tests.resources.saveparticipant1/.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/resources/tests/org.eclipse.core.tests.resources.saveparticipant1/.settings/org.eclipse.jdt.core.prefs b/resources/tests/org.eclipse.core.tests.resources.saveparticipant1/.settings/org.eclipse.jdt.core.prefs
index a698e59674f..a58ebdcad30 100644
--- a/resources/tests/org.eclipse.core.tests.resources.saveparticipant1/.settings/org.eclipse.jdt.core.prefs
+++ b/resources/tests/org.eclipse.core.tests.resources.saveparticipant1/.settings/org.eclipse.jdt.core.prefs
@@ -1,12 +1,15 @@
 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
 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/resources/tests/org.eclipse.core.tests.resources.saveparticipant1/META-INF/MANIFEST.MF b/resources/tests/org.eclipse.core.tests.resources.saveparticipant1/META-INF/MANIFEST.MF
index 7a726b8cf03..c315352257d 100644
--- a/resources/tests/org.eclipse.core.tests.resources.saveparticipant1/META-INF/MANIFEST.MF
+++ b/resources/tests/org.eclipse.core.tests.resources.saveparticipant1/META-INF/MANIFEST.MF
@@ -3,12 +3,12 @@ Bundle-ManifestVersion: 2
 Bundle-Name: Save Participant 1
 Bundle-Activator: org.eclipse.core.tests.resources.saveparticipant1.SaveParticipant1Plugin
 Bundle-SymbolicName: org.eclipse.core.tests.resources.saveparticipant1
-Bundle-Version: 3.4.100.qualifier
+Bundle-Version: 3.5.0.qualifier
 Bundle-Vendor: Eclipse.org
 Export-Package: org.eclipse.core.tests.resources.saveparticipant1
 Require-Bundle: org.eclipse.core.resources,
  org.eclipse.core.tests.resources,
  org.junit,
  org.eclipse.core.runtime
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-ActivationPolicy: lazy
diff --git a/resources/tests/org.eclipse.core.tests.resources.saveparticipant2/.classpath b/resources/tests/org.eclipse.core.tests.resources.saveparticipant2/.classpath
index 3e5654f17eb..a42a828e04a 100644
--- a/resources/tests/org.eclipse.core.tests.resources.saveparticipant2/.classpath
+++ b/resources/tests/org.eclipse.core.tests.resources.saveparticipant2/.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/resources/tests/org.eclipse.core.tests.resources.saveparticipant2/.settings/org.eclipse.jdt.core.prefs b/resources/tests/org.eclipse.core.tests.resources.saveparticipant2/.settings/org.eclipse.jdt.core.prefs
index a698e59674f..a58ebdcad30 100644
--- a/resources/tests/org.eclipse.core.tests.resources.saveparticipant2/.settings/org.eclipse.jdt.core.prefs
+++ b/resources/tests/org.eclipse.core.tests.resources.saveparticipant2/.settings/org.eclipse.jdt.core.prefs
@@ -1,12 +1,15 @@
 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
 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/resources/tests/org.eclipse.core.tests.resources.saveparticipant2/META-INF/MANIFEST.MF b/resources/tests/org.eclipse.core.tests.resources.saveparticipant2/META-INF/MANIFEST.MF
index 9b976fbb65c..c9122b9629f 100644
--- a/resources/tests/org.eclipse.core.tests.resources.saveparticipant2/META-INF/MANIFEST.MF
+++ b/resources/tests/org.eclipse.core.tests.resources.saveparticipant2/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Save Participant 2
 Bundle-SymbolicName: org.eclipse.core.tests.resources.saveparticipant2
-Bundle-Version: 3.4.100.qualifier
+Bundle-Version: 3.5.0.qualifier
 Bundle-Vendor: Eclipse.org
 Export-Package: org.eclipse.core.tests.resources.saveparticipant2
 Require-Bundle: org.eclipse.core.resources,
@@ -10,5 +10,5 @@ Require-Bundle: org.eclipse.core.resources,
  org.junit,
  org.eclipse.core.runtime
 Bundle-Activator: org.eclipse.core.tests.resources.saveparticipant2.SaveParticipant2Plugin
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-ActivationPolicy: lazy
diff --git a/resources/tests/org.eclipse.core.tests.resources.saveparticipant3/.classpath b/resources/tests/org.eclipse.core.tests.resources.saveparticipant3/.classpath
index 3e5654f17eb..a42a828e04a 100644
--- a/resources/tests/org.eclipse.core.tests.resources.saveparticipant3/.classpath
+++ b/resources/tests/org.eclipse.core.tests.resources.saveparticipant3/.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/resources/tests/org.eclipse.core.tests.resources.saveparticipant3/.settings/org.eclipse.jdt.core.prefs b/resources/tests/org.eclipse.core.tests.resources.saveparticipant3/.settings/org.eclipse.jdt.core.prefs
index a698e59674f..a58ebdcad30 100644
--- a/resources/tests/org.eclipse.core.tests.resources.saveparticipant3/.settings/org.eclipse.jdt.core.prefs
+++ b/resources/tests/org.eclipse.core.tests.resources.saveparticipant3/.settings/org.eclipse.jdt.core.prefs
@@ -1,12 +1,15 @@
 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
 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/resources/tests/org.eclipse.core.tests.resources.saveparticipant3/META-INF/MANIFEST.MF b/resources/tests/org.eclipse.core.tests.resources.saveparticipant3/META-INF/MANIFEST.MF
index d6853d34a09..53e1b118669 100644
--- a/resources/tests/org.eclipse.core.tests.resources.saveparticipant3/META-INF/MANIFEST.MF
+++ b/resources/tests/org.eclipse.core.tests.resources.saveparticipant3/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Save Participant 3
 Bundle-SymbolicName: org.eclipse.core.tests.resources.saveparticipant3
-Bundle-Version: 3.4.100.qualifier
+Bundle-Version: 3.5.0.qualifier
 Bundle-Vendor: Eclipse.org
 Export-Package: org.eclipse.core.tests.resources.saveparticipant3
 Require-Bundle: org.eclipse.core.resources,
@@ -10,5 +10,5 @@ Require-Bundle: org.eclipse.core.resources,
  org.junit,
  org.eclipse.core.runtime
 Bundle-Activator: org.eclipse.core.tests.resources.saveparticipant3.SaveParticipant3Plugin
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-ActivationPolicy: lazy