0c9976393b
2005-09-21 Bryce McKinlay <mckinlay@redhat.com>
* gnu/gcj/runtime/BootClassLoader.java (BootClassLoader): Pass
`null' parent ClassLoader to parent constructor.
* gnu/gcj/runtime/HelperClassLoader.java (HelperClassLoader): New
constructor.
From-SVN: r104516
73 lines
1.8 KiB
Java
73 lines
1.8 KiB
Java
/* Copyright (C) 2005 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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package gnu.gcj.runtime;
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import java.io.File;
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import java.io.FilenameFilter;
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import java.io.IOException;
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import java.net.URL;
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import java.net.URLClassLoader;
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import java.util.StringTokenizer;
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/**
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* This is a URLClassLoader that has an extra helper method for
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* handling things like java.ext.dirs.
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*/
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class HelperClassLoader extends URLClassLoader
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{
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HelperClassLoader()
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{
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super(new URL[0]);
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}
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HelperClassLoader(ClassLoader parent)
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{
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super(new URL[0], parent);
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}
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/**
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* This is a helper method that adds all the jar and zip files from
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* a given list of paths to this class loader. The paths are taken
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* from a system property whose name is provided as an argument.
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*/
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final void addDirectoriesFromProperty(String propName)
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{
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StringTokenizer st
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= new StringTokenizer (System.getProperty (propName, ""),
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File.pathSeparator);
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try
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{
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while (st.hasMoreElements ())
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{
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String dirname = st.nextToken ();
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File dir = new File (dirname);
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if (dir.exists ())
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{
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if (! dirname.endsWith (File.separator))
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dirname = dirname + File.separator;
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String files[] = dir.list (new FilenameFilter ()
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{
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public boolean accept (File dir, String name)
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{
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return name.endsWith (".jar") || name.endsWith (".zip");
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}
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});
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for (int i = files.length - 1; i >= 0; i--)
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addURL(new URL("file", "", -1, dirname + files[i]));
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}
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}
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}
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catch (java.net.MalformedURLException x)
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{
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// This should never happen.
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throw new RuntimeException(x);
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}
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}
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}
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