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/*
* Copyright (c) 2017, 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 8185003
* @build ThreadDump
* @run main MaxDepthForThreadInfoTest
* @summary verifies the functionality of ThreadMXBean.dumpAllThreads
* and ThreadMXBean.getThreadInfo with maxDepth argument
*/
import java.lang.management.ManagementFactory;
import java.lang.management.ThreadInfo;
import java.lang.management.ThreadMXBean;
public class MaxDepthForThreadInfoTest {
public static void main(String[] Args) {
ThreadMXBean tmxb = ManagementFactory.getThreadMXBean();
long[] threadIds = tmxb.getAllThreadIds();
ThreadInfo[] tinfos = tmxb.getThreadInfo(threadIds, true, true, 0);
for (ThreadInfo ti : tinfos) {
if (ti.getStackTrace().length > 0) {
ThreadDump.printThreadInfo(ti);
throw new RuntimeException("more than requested " +
"number of frames dumped");
}
}
tinfos = tmxb.getThreadInfo(threadIds, true, true, 3);
for (ThreadInfo ti : tinfos) {
if (ti.getStackTrace().length > 3) {
ThreadDump.printThreadInfo(ti);
throw new RuntimeException("more than requested " +
"number of frames dumped");
}
}
try {
tmxb.getThreadInfo(threadIds, true, true, -1);
throw new RuntimeException("Didn't throw IllegalArgumentException " +
"for negative maxdepth value");
} catch (IllegalArgumentException e) {
System.out.println("Throwed IllegalArgumentException as expected");
}
tinfos = tmxb.dumpAllThreads(true, true, 0);
for (ThreadInfo ti : tinfos) {
if (ti.getStackTrace().length > 0) {
ThreadDump.printThreadInfo(ti);
throw new RuntimeException("more than requested " +
"number of frames dumped");
}
}
tinfos = tmxb.dumpAllThreads(true, true, 2);
for (ThreadInfo ti : tinfos) {
if (ti.getStackTrace().length > 2) {
ThreadDump.printThreadInfo(ti);
throw new RuntimeException("more than requested " +
"number of frames dumped");
}
}
try {
tmxb.dumpAllThreads(true, true, -1);
throw new RuntimeException("Didn't throw IllegalArgumentException " +
"for negative maxdepth value");
} catch (IllegalArgumentException e) {
System.out.println("Throwed IllegalArgumentException as expected");
}
System.out.println("Test passed");
}
}
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