diff --git a/bundles/org.eclipse.e4.ui.workbench3/META-INF/MANIFEST.MF b/bundles/org.eclipse.e4.ui.workbench3/META-INF/MANIFEST.MF
index 122b6492366..37aacb29152 100644
--- a/bundles/org.eclipse.e4.ui.workbench3/META-INF/MANIFEST.MF
+++ b/bundles/org.eclipse.e4.ui.workbench3/META-INF/MANIFEST.MF
@@ -1,7 +1,7 @@
 Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-SymbolicName: org.eclipse.e4.ui.workbench3;singleton:=true
-Bundle-Version: 0.17.500.qualifier
+Bundle-Version: 0.17.600.qualifier
 Bundle-Name: %pluginName
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
diff --git a/bundles/org.eclipse.e4.ui.workbench3/src/org/eclipse/ui/testing/ContributionInfo.java b/bundles/org.eclipse.e4.ui.workbench3/src/org/eclipse/ui/testing/ContributionInfo.java
index 978f254b0d6..5a21b0d6ed1 100644
--- a/bundles/org.eclipse.e4.ui.workbench3/src/org/eclipse/ui/testing/ContributionInfo.java
+++ b/bundles/org.eclipse.e4.ui.workbench3/src/org/eclipse/ui/testing/ContributionInfo.java
@@ -23,9 +23,9 @@
  */
 public class ContributionInfo {
 
-	private String bundleId;
-	private String elementType;
-	private IConfigurationElement configurationElement;
+	private final String bundleId;
+	private final String elementType;
+	private final IConfigurationElement configurationElement;
 
 	/**
 	 * Creates a new instance.
diff --git a/bundles/org.eclipse.e4.ui.workbench3/src/org/eclipse/ui/testing/dumps/TimeoutDumpTimer.java b/bundles/org.eclipse.e4.ui.workbench3/src/org/eclipse/ui/testing/dumps/TimeoutDumpTimer.java
index 9184403f2de..793ba175efa 100644
--- a/bundles/org.eclipse.e4.ui.workbench3/src/org/eclipse/ui/testing/dumps/TimeoutDumpTimer.java
+++ b/bundles/org.eclipse.e4.ui.workbench3/src/org/eclipse/ui/testing/dumps/TimeoutDumpTimer.java
@@ -357,9 +357,9 @@ private static void log(IStatus warningStatus) {
 	}
 
 	private static class StreamForwarder extends Thread {
-		private InputStream fProcessOutput;
+		private final InputStream fProcessOutput;
 
-		private PrintStream fStream;
+		private final PrintStream fStream;
 
 		public StreamForwarder(InputStream processOutput, PrintStream stream) {
 			fProcessOutput = processOutput;