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1   /*
2    * ModeShape (http://www.modeshape.org)
3    * See the COPYRIGHT.txt file distributed with this work for information
4    * regarding copyright ownership.  Some portions may be licensed
5    * to Red Hat, Inc. under one or more contributor license agreements.
6    * See the AUTHORS.txt file in the distribution for a full listing of 
7    * individual contributors.
8    *
9    * ModeShape is free software. Unless otherwise indicated, all code in ModeShape
10   * is licensed to you under the terms of the GNU Lesser General Public License as
11   * published by the Free Software Foundation; either version 2.1 of
12   * the License, or (at your option) any later version.
13   * 
14   * ModeShape is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17   * Lesser General Public License for more details.
18   *
19   * You should have received a copy of the GNU Lesser General Public
20   * License along with this software; if not, write to the Free
21   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
23   */
24  package org.modeshape.jdbc.util;
25  
26  import java.util.Arrays;
27  import java.util.Collection;
28  import java.util.HashSet;
29  import java.util.Set;
30  
31  /**
32   * A set of utilities for more easily creating various kinds of collections.
33   */
34  public class Collections {
35  
36      public static <T> Set<T> unmodifiableSet( T... values ) {
37          return unmodifiableSet(Arrays.asList(values));
38      }
39  
40      public static <T> Set<T> unmodifiableSet( Collection<T> values ) {
41          return java.util.Collections.unmodifiableSet(new HashSet<T>(values));
42      }
43  
44      public static <T> Set<T> unmodifiableSet( Set<T> values ) {
45          return java.util.Collections.unmodifiableSet(values);
46      }
47  
48  }