/*
* Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* This test runs in othervm mode as it tests ClassLoader.findSystemClass
* and getSystemResource methods.
*/
/* @test
@bug 4147599 4478150
@summary In 1.2beta4-I ClassLoader loaded classes can not link
against application classes.
@run main/othervm Loader
*/
/*
* We are trying to test that certain methods of ClassLoader look at the same
* paths as they did in 1.1. To run this test on 1.1, you will have to pass
* "-1.1" as option on the command line.
*
* The required files are:
*
* - Loader.java (a 1.1 style class loader)
* - Loadee.java (source for a class that refers to Loader)
* - Loadee.classfile (to test findSystemClass)
* - Loadee.resource (to test getSystemResource)
*
* The extension ".classfile" is so the class file is not seen by any loader
* other than Loader. If you need to make any changes you will have to
* compile Loadee.java and rename Loadee.class to Loadee.classfile.
*/
import java.io.File;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.URL;
import java.util.HashSet;
/**
* A 1.1-style ClassLoader. The only class it can really load is "Loadee".
* For other classes it might be asked to load, it relies on loaders set up by
* the launcher.
*/
public class Loader extends ClassLoader {
public Class loadClass(String name, boolean resolve)
throws ClassNotFoundException {
Class c = null;
try {
c = findSystemClass(name);
} catch (ClassNotFoundException cnfe) {
}
if (c == null) {
if (!name.equals("Loadee"))
throw new Error("java.lang.ClassLoader.findSystemClass() " +
"did not find class " + name);
byte[] b = locateBytes();
c = defineClass(name, b, 0, b.length);
}
if (resolve) {
resolveClass(c);
}
return c;
}
private byte[] locateBytes() {
try {
File f = new File(System.getProperty("test.src", "."),
"Loadee.classfile");
long l = f.length();
byte[] b = new byte[(int)l];
DataInputStream in =
new DataInputStream(new FileInputStream(f));
in.readFully(b);
return b;
} catch (IOException ioe) {
ioe.printStackTrace();
throw new Error("Test failed due to IOException!");
}
}
private static final int FIND = 0x1;
private static final int RESOURCE = 0x2;
private static final int RESOURCES = 0x4;
public static void main(String[] args) throws Exception {
int tests = FIND | RESOURCE | RESOURCES;
if (args.length == 1 && args[0].equals("-1.1")) {
tests &= ~RESOURCES; /* Do not run getResources test. */
}
if ((tests & FIND) == FIND) {
report("findSystemClass()");
ClassLoader l = new Loader();
Class c = l.loadClass("Loadee");
Object o = c.newInstance();
}
if ((tests & RESOURCE) == RESOURCE) {
report("getSystemResource()");
URL u = getSystemResource("Loadee.resource");
if (u == null)
throw new Exception
("java.lang.ClassLoader.getSystemResource() test failed!");
}
}
private static void report(String s) {
System.out.println("Testing java.lang.ClassLoader." + s + " ...");
}
}