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java.util.concurrent
Interface RejectedExecutionHandler

All Known Implementing Classes:

ThreadPoolExecutor.AbortPolicy, ThreadPoolExecutor.CallerRunsPolicy, ThreadPoolExecutor.DiscardOldestPolicy, ThreadPoolExecutor.DiscardPolicy

public interface RejectedExecutionHandler

A handler for tasks that cannot be executed by a ThreadPoolExecutor.

Since:

1.5

Method Summary

Modifier and Type	Method and Description
void	rejectedExecution(Runnable r, ThreadPoolExecutor executor) Method that may be invoked by a ThreadPoolExecutor when execute cannot accept a task.

Method Detail

rejectedExecution

void rejectedExecution(Runnable r,
                       ThreadPoolExecutor executor)

Method that may be invoked by a ThreadPoolExecutor when execute cannot accept a task. This may occur when no more threads or queue slots are available because their bounds would be exceeded, or upon shutdown of the Executor.

In the absence of other alternatives, the method may throw an unchecked RejectedExecutionException, which will be propagated to the caller of execute.

Parameters:

r - the runnable task requested to be executed

executor - the executor attempting to execute this task

Throws:

RejectedExecutionException - if there is no remedy