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    1   /*
    2    * Written by Doug Lea with assistance from members of JCP JSR-166
    3    * Expert Group and released to the public domain, as explained at
    4    * http://creativecommons.org/licenses/publicdomain
    5    */
    6   
    7   package org.apache.geronimo.concurrent.harmony;
    8   
    9   /**
   10    * A handler for tasks that cannot be executed by a {@link
   11    * ThreadPoolExecutor}.
   12    *
   13    * @since 1.5
   14    * @author Doug Lea
   15    */
   16   public interface RejectedExecutionHandler {
   17   
   18       /**
   19        * Method that may be invoked by a {@link ThreadPoolExecutor} when
   20        * <tt>execute</tt> cannot accept a task. This may occur when no
   21        * more threads or queue slots are available because their bounds
   22        * would be exceeded, or upon shutdown of the Executor.
   23        *
   24        * In the absence other alternatives, the method may throw an
   25        * unchecked {@link RejectedExecutionException}, which will be
   26        * propagated to the caller of <tt>execute</tt>.
   27        *
   28        * @param r the runnable task requested to be executed
   29        * @param executor the executor attempting to execute this task
   30        * @throws RejectedExecutionException if there is no remedy
   31        */
   32       void rejectedExecution(Runnable r, ThreadPoolExecutor executor);
   33   }

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