private synchronized JavaProjectSources getWorkspaceSources0() throws CoreException {
if (javaProjectSources == null) {
javaProjectSources = new JavaProjectSources();
javaProjectSources.initialize();
}
return javaProjectSources;
}
public void stop(BundleContext context) throws Exception {
backgroundJob.cancel();
backgroundJob = null;
javaProjectSources.close();
javaProjectSources = null;
plugin = null;
super.stop(context);
}