// Tags: JDK1.2
// Copyright (C) 2002 Free Software Foundation, Inc.
// Written by Mark Wielaard (mark@klomp.org)
// This file is part of Mauve.
// Mauve is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// Mauve 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 for more details.
// You should have received a copy of the GNU General Public License
// along with Mauve; see the file COPYING. If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA. */
package gnu.testlet.wonka.lang.Thread;
import gnu.testlet.Testlet;
import gnu.testlet.TestHarness;
public class contextClassLoader implements Testlet, Runnable
{
// ClassLoader which should be returned by getContextClassLoader in run().
ClassLoader checkClassLoader;
String check_msg;
TestHarness h;
public void test (TestHarness harness)
{
h = harness;
Thread current = Thread.currentThread();
ClassLoader current_cl = current.getContextClassLoader();
try
{
ClassLoader system_cl = ClassLoader.getSystemClassLoader();
harness.check(current_cl, system_cl,
"Default contextClassLoader is System ClassLoader");
Thread t = new Thread(this, "CL-Test-Thread");
ClassLoader t_cl = t.getContextClassLoader();
harness.check(t_cl, current_cl, "New thread inherits classloader");
checkClassLoader = t_cl;
check_msg = "Run with default contextClassLoader";
t.start();
try
{
t.join();
}
catch (InterruptedException e)
{
throw new Error(e);
}
harness.checkPoint("null-context classloader");
current.setContextClassLoader(null);
harness.check(current.getContextClassLoader() , null,
"null is a valid contextClassLoader");
t = new Thread(this, "CL-Test-Thread-2");
harness.check(t.getContextClassLoader(), null,
"New thread inherits null classloader");
checkClassLoader = null;
check_msg = "run with null classloader";
t.start();
try
{
t.join();
}
catch (InterruptedException e)
{
throw new Error(e);
}
}
finally
{
// And set back the current classloader
current.setContextClassLoader(current_cl);
harness.check(current.getContextClassLoader(), current_cl,
"Reset context classloader");
}
}
public void run()
{
Thread current = Thread.currentThread();
ClassLoader cl = current.getContextClassLoader();
h.debug("checkClassLoader: " + checkClassLoader);
h.debug(current + ": " + cl);
h.check(cl, checkClassLoader, check_msg);
}
}