package com.atlassian.plugin.event.events;
   
   import static com.google.common.base.Preconditions.checkNotNull;
   
   /**
    * Event for when the container of a plugin is been shutdown, usually as a result of the OSGi bundle being stopped.
    *
    * @see com.atlassian.plugin.event.events
    * @since 2.5.0
   */
  public class PluginContainerUnavailableEvent {
      private final String key;
  
      public PluginContainerUnavailableEvent(final String key) {
          this.key = checkNotNull(key, "The plugin key must be available");
      }
  
      public String getPluginKey() {
          return key;
      }
  }