Program: 122193
Project: 122193
Buggy source:
/** 
 * The <code>MultiPageEditorPart</code> implementation of this <code>IWorkbenchPart</code> method disposes all nested editors. Subclasses may extend.
 */
@Override public void dispose(){
  getSite().setSelectionProvider(null);
  getSite().getWorkbenchWindow().getSelectionService().removeSelectionListener(this);
  ResourcesPlugin.getWorkspace().removeResourceChangeListener(this);
  getSite().getWorkbenchWindow().getPartService().removePartListener(partListener);
  this.lockService.unregister();
  super.dispose();
  if (isKeepPropertyLocked()) {
    return;
  }
  IRepositoryService service=CorePlugin.getDefault().getRepositoryService();
  IProxyRepositoryFactory repFactory=service.getProxyRepositoryFactory();
  try {
    getProcess().getProperty().eAdapters().remove(dirtyListener);
    Property property=getProcess().getProperty();
    if (property.eResource() == null || property.getItem().eResource() == null) {
      property=repFactory.getUptodateProperty(property);
    }
    JobletUtil jUtil=new JobletUtil();
    jUtil.makeSureUnlockJoblet(getProcess());
    Item item=getProcess().getProperty().getItem();
    boolean keep=jUtil.keepLockJoblet(item);
    if (keep) {
      repFactory.unlock(property.getItem());
    }
  }
 catch (  PersistenceException e) {
    ExceptionHandler.process(e);
  }
catch (  LoginException e) {
    ExceptionHandler.process(e);
  }
  processEditorInput.dispose();
  processEditorInput=null;
  designerEditor=null;
  codeEditor=null;
  if (processor instanceof IJavaBreakpointListener) {
    JDIDebugModel.removeJavaBreakpointListener((IJavaBreakpointListener)processor);
  }
  processor=null;
  dirtyListener=null;
}

Fixed version (ground truth):
/** 
 * The <code>MultiPageEditorPart</code> implementation of this <code>IWorkbenchPart</code> method disposes all nested editors. Subclasses may extend.
 */
@Override public void dispose(){
  getSite().setSelectionProvider(null);
  getSite().getWorkbenchWindow().getSelectionService().removeSelectionListener(this);
  ResourcesPlugin.getWorkspace().removeResourceChangeListener(this);
  getSite().getWorkbenchWindow().getPartService().removePartListener(partListener);
  if (this.lockService != null) {
    this.lockService.unregister();
  }
  super.dispose();
  if (isKeepPropertyLocked()) {
    return;
  }
  IRepositoryService service=CorePlugin.getDefault().getRepositoryService();
  IProxyRepositoryFactory repFactory=service.getProxyRepositoryFactory();
  try {
    getProcess().getProperty().eAdapters().remove(dirtyListener);
    Property property=getProcess().getProperty();
    if (property.eResource() == null || property.getItem().eResource() == null) {
      property=repFactory.getUptodateProperty(property);
    }
    JobletUtil jUtil=new JobletUtil();
    jUtil.makeSureUnlockJoblet(getProcess());
    Item item=getProcess().getProperty().getItem();
    boolean keep=jUtil.keepLockJoblet(item);
    if (keep) {
      repFactory.unlock(property.getItem());
    }
  }
 catch (  PersistenceException e) {
    ExceptionHandler.process(e);
  }
catch (  LoginException e) {
    ExceptionHandler.process(e);
  }
  processEditorInput.dispose();
  processEditorInput=null;
  designerEditor=null;
  codeEditor=null;
  if (processor instanceof IJavaBreakpointListener) {
    JDIDebugModel.removeJavaBreakpointListener((IJavaBreakpointListener)processor);
  }
  processor=null;
  dirtyListener=null;
}