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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
4   //  ------------------------------------------------------------------------
5   //  All rights reserved. This program and the accompanying materials
6   //  are made available under the terms of the Eclipse Public License v1.0
7   //  and Apache License v2.0 which accompanies this distribution.
8   //
9   //      The Eclipse Public License is available at
10  //      http://www.eclipse.org/legal/epl-v10.html
11  //
12  //      The Apache License v2.0 is available at
13  //      http://www.opensource.org/licenses/apache2.0.php
14  //
15  //  You may elect to redistribute this code under either of these licenses.
16  //  ========================================================================
17  //
18  
19  package org.eclipse.jetty.util.preventers;
20  
21  import java.awt.Toolkit;
22  
23  /**
24   * AWTLeakPreventer
25   *
26   * See https://issues.jboss.org/browse/AS7-3733
27   * 
28   * The java.awt.Toolkit class has a static field that is the default toolkit. 
29   * Creating the default toolkit causes the creation of an EventQueue, which has a 
30   * classloader field initialized by the thread context class loader. 
31   *
32   */
33  public class AWTLeakPreventer extends AbstractLeakPreventer
34  {
35     
36      /* ------------------------------------------------------------ */
37      /** 
38       * @see org.eclipse.jetty.util.preventers.AbstractLeakPreventer#prevent(java.lang.ClassLoader)
39       */
40      @Override
41      public void prevent(ClassLoader loader)
42      {
43          if (LOG.isDebugEnabled())
44              LOG.debug("Pinning classloader for java.awt.EventQueue using "+loader);
45          Toolkit.getDefaultToolkit();
46      }
47  
48  }