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    1   /**
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *     http://www.apache.org/licenses/LICENSE-2.0
   10    *
   11    *  Unless required by applicable law or agreed to in writing, software
   12    *  distributed under the License is distributed on an "AS IS" BASIS,
   13    *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   14    *  See the License for the specific language governing permissions and
   15    *  limitations under the License.
   16    */
   17   package org.apache.openejb.core.security.jaas;
   18   
   19   import java.security.Principal;
   20   
   21   /**
   22    * @version $Rev: 602704 $ $Date: 2007-12-09 09:58:22 -0800 (Sun, 09 Dec 2007) $
   23    */
   24   public class GroupPrincipal implements Principal {
   25   
   26       private final String name;
   27       private transient int hash;
   28   
   29       public GroupPrincipal(String name) {
   30           if (name == null) throw new IllegalArgumentException("name cannot be null");
   31           this.name = name;
   32       }
   33   
   34       public String getName() {
   35           return name;
   36       }
   37   
   38       public boolean equals(Object o) {
   39           if (this == o) return true;
   40           if (o == null || getClass() != o.getClass()) return false;
   41   
   42           final GroupPrincipal that = (GroupPrincipal) o;
   43   
   44           if (!name.equals(that.name)) return false;
   45   
   46           return true;
   47       }
   48   
   49       public int hashCode() {
   50           if (hash == 0) {
   51               hash = name.hashCode();
   52           }
   53           return hash;
   54       }
   55   
   56       public String toString() {
   57           return name;
   58       }
   59   }

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