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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2013 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.osgi.boot.internal.jsp;
20  
21  import java.net.URL;
22  import java.net.URLClassLoader;
23  
24  /**
25   * Tricky url classloader. In fact we don't want a real URLClassLoader: we want
26   * OSGi to provide its classloader and let it does. But to let
27   * {@link org.apache.jasper.compiler.TldLocationsCache} find the core tlds
28   * inside the jars we must be a URLClassLoader that returns an array of jars
29   * where tlds are stored when the method getURLs is called.
30   */
31  public class TldLocatableURLClassloader extends URLClassLoader
32  {
33  
34      private URL[] _jarsWithTldsInside;
35  
36      public TldLocatableURLClassloader(ClassLoader osgiClassLoader, URL[] jarsWithTldsInside)
37      {
38          super(new URL[] {},osgiClassLoader);
39          _jarsWithTldsInside = jarsWithTldsInside;
40      }
41  
42      /**
43       * @return the jars that contains tlds so that TldLocationsCache or
44       *         TldScanner can find them.
45       */
46      @Override
47      public URL[] getURLs()
48      {
49          return _jarsWithTldsInside;
50      }
51  }