/* * Copyright (c) 2001, 2022, 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.
*/
/** * @test * @bug 4513488 * @summary Test for JDI: Internal JDI helper threads should setDaemon(true) * @author Tim Bell * * @run build TestScaffold VMConnection TargetListener TargetAdapter * @run compile -g DebuggerThreadTest.java * @run driver DebuggerThreadTest
*/ import com.sun.jdi.*; import com.sun.jdi.event.*; import com.sun.jdi.request.*;
import java.util.*;
/********** target program **********/
class DebuggerThreadTarg { publicvoid ready() {
} publicstaticvoid main(String[] args){
System.out.println("Howdy!");
DebuggerThreadTarg targ = new DebuggerThreadTarg();
targ.ready();
System.out.println("Goodbye from DebuggerThreadTarg!");
}
}
publicstaticvoid main(String[] args) throws Exception { new DebuggerThreadTest(args).startTests();
}
/* * Move to top ThreadGroup and dump all threads.
*/ publicvoid dumpThreads() {
ThreadGroup tg = Thread.currentThread().getThreadGroup();
ThreadGroup parent = tg.getParent(); while (parent != null) {
tg = parent;
parent = tg.getParent();
} int listThreads = tg.activeCount(); Thread list[] = newThread[listThreads * 2]; int gotThreads = tg.enumerate(list, true); for (int i = 0; i < Math.min(gotThreads, list.length); i++){ Thread t = list[i];
ThreadGroup tga = t.getThreadGroup();
String groupName; if (tga == null) {
groupName = "";
} else {
groupName = tga.getName();
}
System.out.println("Thread [" + i + "] group = '" +
groupName + "' name = '" + t.getName() + "' daemon = " + t.isDaemon());
if (groupName.startsWith("JDI ") &&
(! t.isDaemon())) {
failure("FAIL: non-daemon thread '" + t.getName() + "' found in ThreadGroup '" + groupName + "'");
}
}
}
protectedvoid runTests() throws Exception { try { /* * Get to the top of ready()
*/
startTo("DebuggerThreadTarg", "ready", "()V");
dumpThreads();
listenUntilVMDisconnect();
} finally { /* * deal with results of test * if anything has called failure("foo") testFailed will be true
*/ if (!testFailed) {
println("DebuggerThreadTest: passed");
} else { thrownew Exception("DebuggerThreadTest: failed");
}
} return;
}
}
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