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// Tags: JDK1.0
// Copyright (C) 2003 Free Software Foundation, Inc.
// Written by C. Brian Jones (cbj@gnu.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.java.lang.Thread;
import gnu.testlet.Testlet;
import gnu.testlet.TestHarness;
public class stop extends Thread implements Testlet
{
static TestHarness harness;
// accessed outside synchronized block by multiple threads
static volatile boolean death = false;
static Object lock = new Object();
static boolean running = false;
public void run()
{
try
{
synchronized(lock)
{
running = true;
lock.notifyAll();
while (true)
lock.wait();
}
}
catch (Exception e)
{
harness.fail("Unexpected exception during run()");
}
catch (ThreadDeath d)
{
death = true;
Thread thread = Thread.currentThread();
ThreadGroup group = thread.getThreadGroup();
harness.check(group != null, "Stop should not remove thread from ThreadGroup");
throw d;
}
}
public void test (TestHarness h)
{
harness = h;
int initial_thread_count = 0;
int running_thread_count = 0;
int stopped_thread_count = 0;
Thread[] thread_list = null;
try
{
int x = 0;
Thread current = Thread.currentThread();
ThreadGroup group = current.getThreadGroup();
x = group.activeCount() + 10;
thread_list = new Thread[x];
initial_thread_count = group.enumerate(thread_list, true);
stop t = new stop();
ThreadGroup tgroup = t.getThreadGroup();
harness.check (tgroup != null, "Unstarted thread has non-null thread group");
t.start();
synchronized(lock)
{
while (!running)
{
lock.wait();
}
x = group.activeCount() + 10;
thread_list = new Thread[x];
running_thread_count = group.enumerate(thread_list, true);
tgroup = t.getThreadGroup();
harness.check(tgroup != null, "Running thread has non-null thread group");
}
t.stop();
t.join(2000, 0);
x = group.activeCount() + 10;
thread_list = new Thread[x];
stopped_thread_count = group.enumerate(thread_list, true);
harness.check(death, "ThreadDeath properly thrown and caught");
harness.check(initial_thread_count == stopped_thread_count,
"Initial thread count matches stopped thread count");
harness.check(running_thread_count-1 == initial_thread_count,
"Running thread properly increased thread count");
tgroup = t.getThreadGroup();
harness.check(tgroup == null, "Stopped thread has null thread group");
}
catch (InterruptedException e)
{
harness.fail("Thread not joined - Thread.stop() unimplemented?");
}
catch (Exception e)
{
harness.debug(e);
harness.fail("Unexpected exception during test()");
}
}
}
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