*
       * Fortunately, exceptions rarely contain references to expensive resources.
       */

      //
      seenExceptionsLocal = newConcurrentHashSet();
      /*
       * Other handleException() callers may see this as soon as we publish it. We need to populate
       * it with the initial failure before we do, or else they may think that the initial failure
       * has never been seen before.
       */

    EventBus eventBus =
        new EventBus(
            new SubscriberExceptionHandler() {
              @Override
              public void handleException(Throwable exception, SubscriberExceptionContext context) {
                throw new RuntimeException();
              }
            });
    Object subscriber =
        new Object() {
          @Subscribe