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   /*
    * Copyright 2012 The Netty Project
    *
    * The Netty Project licenses this file to you 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:
    *
    *   http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
   * License for the specific language governing permissions and limitations
   * under the License.
   */
  package org.jboss.netty.util.internal;
  
  import java.util.concurrent.Executor;
  
  /**
   * Disables shutdown of an {@link Executor} by wrapping the {@link Executor}.
   */
  public class UnterminatableExecutor implements Executor {
  
      private final Executor executor;
  
      public UnterminatableExecutor(Executor executor) {
          if (executor == null) {
              throw new NullPointerException("executor");
          }
          this.executor = executor;
      }
  
      public void execute(Runnable command) {
          executor.execute(command);
      }
  }