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
75 lines
1.8 KiB
Java
75 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.IOException;
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import java.net.URL;
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import java.util.Enumeration;
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/**
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* This is a helper for the bootstrap class loader. It is a
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* URLClassLoader so that we can read a class path and re-use all the
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* existing code for finding classes, extracting them from jars, etc.
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* However, it is never called the way that an ordinary ClassLoader is
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* called. For instance, loadClass() is never used.
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*/
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public final class BootClassLoader extends HelperClassLoader
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{
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BootClassLoader(String libdir)
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{
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// The BootClassLoader is the top of the delegation chain. It does not
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// have a parent.
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super((ClassLoader) null);
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addDirectoriesFromProperty("java.endorsed.dirs");
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addDirectoriesFromProperty("gnu.gcj.runtime.endorsed.dirs");
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try
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{
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// Add core:/ to the end so any resources compiled into this
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// executable may be found.
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addURL(new URL("core", "", -1, "/"));
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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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public Class bootLoadClass(String name)
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throws ClassNotFoundException
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{
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Class c = findLoadedClass(name);
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if (c == null)
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{
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try
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{
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// We could hack URLClassLoader to make this more
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// efficient, if it mattered.
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c = findClass(name);
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}
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catch (ClassNotFoundException _)
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{
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c = null;
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}
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}
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return c;
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}
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public URL bootGetResource(String name)
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{
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return findResource(name);
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}
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public Enumeration bootGetResources(String name) throws IOException
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{
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return findResources(name);
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}
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}
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