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1   /****************************************************************
2    * Licensed to the Apache Software Foundation (ASF) under one   *
3    * or more contributor license agreements.  See the NOTICE file *
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5    * regarding copyright ownership.  The ASF licenses this file   *
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7    * "License"); you may not use this file except in compliance   *
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14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
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17   * under the License.                                           *
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19  
20  
21  
22  package org.apache.james.pop3server;
23  
24  
25  /**
26    * Default command handler for handling unknown commands
27    */
28  public class UnknownCmdHandler implements CommandHandler {
29  
30      /**
31       * The name of the command handled by the command handler
32       */
33      public static final String UNKNOWN_COMMAND = "UNKNOWN";
34  
35      /**
36       * Handler method called upon receipt of an unrecognized command.
37       * Returns an error response and logs the command.
38       *
39       * @see org.apache.james.pop3server.CommandHandler#onCommand(POP3Session)
40      **/
41      public void onCommand(POP3Session session) {
42          session.writeResponse(POP3Handler.ERR_RESPONSE);
43      }
44  
45  }