Module java.base

Class ThreadPoolExecutor.DiscardOldestPolicy

All Implemented Interfaces:
Enclosing class:

public static class ThreadPoolExecutor.DiscardOldestPolicy
extends Object
implements RejectedExecutionHandler
A handler for rejected tasks that discards the oldest unhandled request and then retries execute, unless the executor is shut down, in which case the task is discarded.
  • Constructor Details

    • DiscardOldestPolicy

      public DiscardOldestPolicy()
      Creates a DiscardOldestPolicy for the given executor.
  • Method Details

    • rejectedExecution

      public void rejectedExecution(Runnable r, ThreadPoolExecutor e)
      Obtains and ignores the next task that the executor would otherwise execute, if one is immediately available, and then retries execution of task r, unless the executor is shut down, in which case task r is instead discarded.
      Specified by:
      rejectedExecution in interface RejectedExecutionHandler
      r - the runnable task requested to be executed
      e - the executor attempting to execute this task