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  * Copyright (C) 2007 The Guava Authors
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.sonatype.sisu.goodies.eventbus.internal.guava;
import static;

Wraps an event that was posted, but which had no subscribers and thus could not be delivered.

Subscribing a DeadEvent handler is useful for debugging or logging, as it can detect misconfigurations in a system's event distribution.

Cliff Biffle
public class DeadEvent
  private final Object source;
  private final Object event;

Creates a new DeadEvent.

source object broadcasting the DeadEvent (generally the EventBus).
event the event that could not be delivered.
  public DeadEvent(Object sourceObject event) {
    this. = checkNotNull(source);
    this. = checkNotNull(event);

Returns the object that originated this event (not the object that originated the wrapped event). This is generally an EventBus.

the source of this event.
  public Object getSource() {
    return ;

Returns the wrapped, 'dead' event, which the system was unable to deliver to any registered handler.

the 'dead' event that could not be delivered.
  public Object getEvent() {
    return ;
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