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eclipse-rcprcpe4

Replace default pop-up window when exception throws on top level in RCP 4 application

How can I replace default pop-up window when exception throws on top level in RCP 4 application?

Default error pop-up window

Solution

  • You can set a class implementing IEventLoopAdvisor in the application Eclipse Context. This is given all unhandled errors.

    Something like:

    class EventLoopAdvisor implements IEventLoopAdvisor
{
  @Override
  public void eventLoopIdle(final Display display)
  {
    display.sleep();
  }


  @Override
  public void eventLoopException(final Throwable exception)
  {
    // TODO Your code
  }
}

    Note: It is extremely important to call display.sleep in the eventLoopIdle method.

    A good place to set this up is the @PostContextCreate of your LifeCycle class (if you have one):

    @PostContextCreate
public void postContextCreate(final IEclipseContext context)
{
  context.set(IEventLoopAdvisor.class, new EventLoopAdvisor());
}

    Note: IEventLoopAdvisor is an internal class so normally I would not advise using it, but this use does seem to be allowed.