diff --git a/build/org.eclipse.cdt.managedbuilder.core/.classpath b/build/org.eclipse.cdt.managedbuilder.core/.classpath
index 065ac06e197..472ee29b11e 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/.classpath
+++ b/build/org.eclipse.cdt.managedbuilder.core/.classpath
@@ -2,6 +2,6 @@
 <classpath>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>
diff --git a/build/org.eclipse.cdt.managedbuilder.core/.settings/org.eclipse.jdt.core.prefs b/build/org.eclipse.cdt.managedbuilder.core/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 00000000000..6401152585f
--- /dev/null
+++ b/build/org.eclipse.cdt.managedbuilder.core/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,12 @@
+#Wed Jan 30 13:50:32 CET 2008
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.5
+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.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.5
diff --git a/build/org.eclipse.cdt.managedbuilder.core/META-INF/MANIFEST.MF b/build/org.eclipse.cdt.managedbuilder.core/META-INF/MANIFEST.MF
index e4053bf50e8..5711d891ae2 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/META-INF/MANIFEST.MF
+++ b/build/org.eclipse.cdt.managedbuilder.core/META-INF/MANIFEST.MF
@@ -35,3 +35,4 @@ Require-Bundle: org.eclipse.cdt.core;bundle-version="[5.0.0,6.0.0)",
  org.eclipse.core.variables;bundle-version="[3.1.100,4.0.0)",
  org.eclipse.cdt.make.core;visibility:=reexport
 Eclipse-LazyStart: true
+Bundle-RequiredExecutionEnvironment: J2SE-1.5
diff --git a/build/org.eclipse.cdt.managedbuilder.core/build.properties b/build/org.eclipse.cdt.managedbuilder.core/build.properties
index c196b846e74..e1343644143 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/build.properties
+++ b/build/org.eclipse.cdt.managedbuilder.core/build.properties
@@ -16,3 +16,6 @@ bin.includes = plugin.xml,\
 src.includes = schema/
 source.. = src/
 
+jre.compilation.profile=J2SE-1.5
+javacSource=1.5
+javacTarget=1.5
diff --git a/build/org.eclipse.cdt.managedbuilder.ui/.classpath b/build/org.eclipse.cdt.managedbuilder.ui/.classpath
index 065ac06e197..472ee29b11e 100644
--- a/build/org.eclipse.cdt.managedbuilder.ui/.classpath
+++ b/build/org.eclipse.cdt.managedbuilder.ui/.classpath
@@ -2,6 +2,6 @@
 <classpath>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>
diff --git a/build/org.eclipse.cdt.managedbuilder.ui/.settings/org.eclipse.jdt.core.prefs b/build/org.eclipse.cdt.managedbuilder.ui/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 00000000000..6faa6de154b
--- /dev/null
+++ b/build/org.eclipse.cdt.managedbuilder.ui/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,12 @@
+#Wed Jan 30 13:51:11 CET 2008
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.5
+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.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.5
diff --git a/build/org.eclipse.cdt.managedbuilder.ui/META-INF/MANIFEST.MF b/build/org.eclipse.cdt.managedbuilder.ui/META-INF/MANIFEST.MF
index 6e846e21510..fe7f1977f7e 100644
--- a/build/org.eclipse.cdt.managedbuilder.ui/META-INF/MANIFEST.MF
+++ b/build/org.eclipse.cdt.managedbuilder.ui/META-INF/MANIFEST.MF
@@ -22,3 +22,4 @@ Require-Bundle: org.eclipse.ui.ide;bundle-version="[3.2.0,4.0.0)",
  org.eclipse.cdt.make.ui,
  org.eclipse.core.filesystem
 Eclipse-LazyStart: true
+Bundle-RequiredExecutionEnvironment: J2SE-1.5
diff --git a/build/org.eclipse.cdt.managedbuilder.ui/build.properties b/build/org.eclipse.cdt.managedbuilder.ui/build.properties
index c66fa8b73b1..5db2959f88b 100644
--- a/build/org.eclipse.cdt.managedbuilder.ui/build.properties
+++ b/build/org.eclipse.cdt.managedbuilder.ui/build.properties
@@ -17,3 +17,6 @@ bin.includes = plugin.xml,\
 src.includes = schema/
 source.. = src/
 
+jre.compilation.profile=J2SE-1.5
+javacSource=1.5
+javacTarget=1.5