Perform clean code of ds/org.eclipse.pde.ds.annotations

Author: eclipse-pde-bot

ds/org.eclipse.pde.ds.annotations/src/org/eclipse/pde/ds/internal/annotations/DSAnnotationVersion.java

@@ -33,7 +33,7 @@ public enum DSAnnotationVersion {
 	public static final DSAnnotationVersion DEFAULT_VERSION = DSAnnotationVersion.V1_4;
 
 	private final String namespace;
-	private String version;
+	private final String version;
 
 	private DSAnnotationVersion(String version, String namespace) {
 		this.version = version;

ds/org.eclipse.pde.ds.annotations/src/org/eclipse/pde/ds/internal/annotations/ProjectClasspathPreferenceChangeListener.java

@@ -45,6 +45,7 @@ public ProjectClasspathPreferenceChangeListener(IJavaProject project) {
 		ResourcesPlugin.getWorkspace().addResourceChangeListener(this, IResourceChangeEvent.PRE_CLOSE | IResourceChangeEvent.PRE_DELETE);
 	}
 
+	@Override
 	public void preferenceChange(PreferenceChangeEvent event) {
 	}