Program: 94650
Project: 94650
Buggy source:
public synchronized void handleChannelEvent(IChannelEvent e){
  if (e instanceof IChannelMessageEvent) {
    IChannelMessageEvent msgEvent=(IChannelMessageEvent)e;
    byte[] data=msgEvent.getData();
    File file=new File(getStateLocation().toFile(),"String_Node_Str");
    try {
      FileOutputStream fos=new FileOutputStream(file);
      fos.write(data);
      List tasks=TasksUiPlugin.getTaskListManager().getTaskListWriter().readTasks(file);
      final AbstractTask task=(AbstractTask)tasks.get(0);
      Set repositories=TasksUiPlugin.getTaskListManager().getTaskListWriter().readRepositories(file);
      TasksUiPlugin.getRepositoryManager().insertRepositories(repositories,TasksUiPlugin.getDefault().getRepositoriesFilePath());
      InteractionContext context=ContextCorePlugin.getContextManager().loadContext(task.getHandleIdentifier(),file);
      CompoundContextActivationContributionItem.enqueue(task,context);
      IWorkbenchWindow[] windows=PlatformUI.getWorkbench().getWorkbenchWindows();
      Shell aShell=null;
      for (int i=0; i < windows.length; i++) {
        aShell=windows[i].getShell();
        if (aShell != null) {
          break;
        }
      }
      if (aShell == null) {
        return;
      }
      final Shell shell=aShell;
      UIJob job=new UIJob("String_Node_Str"){
        public IStatus runInUIThread(        IProgressMonitor monitor){
          final IncomingSharedTaskNotificationPopup popup=new IncomingSharedTaskNotificationPopup(shell);
          popup.setTask(task);
          popup.open();
          new UIJob(shell.getDisplay(),"String_Node_Str"){
            public IStatus runInUIThread(            IProgressMonitor monitor){
              Shell shell=popup.getShell();
              if (shell != null && !shell.isDisposed()) {
                popup.close();
              }
              monitor.done();
              return Status.OK_STATUS;
            }
          }
.schedule(5000);
          return Status.OK_STATUS;
        }
      }
;
      job.schedule();
    }
 catch (    Exception ex) {
      ex.printStackTrace();
    }
 finally {
      file.delete();
    }
  }
}

Fixed version (ground truth):
public synchronized void handleChannelEvent(IChannelEvent e){
  if (e instanceof IChannelMessageEvent) {
    IChannelMessageEvent msgEvent=(IChannelMessageEvent)e;
    byte[] data=msgEvent.getData();
    File file=new File(getStateLocation().toFile(),"String_Node_Str");
    try {
      FileOutputStream fos=new FileOutputStream(file);
      fos.write(data);
      List tasks=TasksUiPlugin.getTaskListManager().getTaskListWriter().readTasks(file);
      final ITask task=(ITask)tasks.get(0);
      Set repositories=TasksUiPlugin.getTaskListManager().getTaskListWriter().readRepositories(file);
      TasksUiPlugin.getRepositoryManager().insertRepositories(repositories,TasksUiPlugin.getDefault().getRepositoriesFilePath());
      IInteractionContext context=ContextCore.getContextStore().importContext(task.getHandleIdentifier(),file);
      CompoundContextActivationContributionItem.enqueue(task,context);
      IWorkbenchWindow[] windows=PlatformUI.getWorkbench().getWorkbenchWindows();
      Shell aShell=null;
      for (int i=0; i < windows.length; i++) {
        aShell=windows[i].getShell();
        if (aShell != null) {
          break;
        }
      }
      if (aShell == null) {
        return;
      }
      final Shell shell=aShell;
      UIJob job=new UIJob("String_Node_Str"){
        public IStatus runInUIThread(        IProgressMonitor monitor){
          final IncomingSharedTaskNotificationPopup popup=new IncomingSharedTaskNotificationPopup(shell);
          popup.setTask(task);
          popup.open();
          new UIJob(shell.getDisplay(),"String_Node_Str"){
            public IStatus runInUIThread(            IProgressMonitor monitor){
              Shell shell=popup.getShell();
              if (shell != null && !shell.isDisposed()) {
                popup.close();
              }
              monitor.done();
              return Status.OK_STATUS;
            }
          }
.schedule(5000);
          return Status.OK_STATUS;
        }
      }
;
      job.schedule();
    }
 catch (    Exception ex) {
      ex.printStackTrace();
    }
 finally {
      file.delete();
    }
  }
}