/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.qpid.test.utils;
import java.lang.management.ManagementFactory;
import java.lang.management.ThreadInfo;
import java.lang.management.ThreadMXBean;
public class TestUtils
{
public static String dumpThreads()
{
ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
ThreadInfo[] threadInfos = threadMXBean.dumpAllThreads(true, true);
StringBuilder dump = new StringBuilder();
dump.append(String.format("%n"));
for (ThreadInfo threadInfo : threadInfos)
{
dump.append(threadInfo);
}
long[] deadLocks = threadMXBean.findDeadlockedThreads();
if (deadLocks != null && deadLocks.length > 0)
{
ThreadInfo[] deadlockedThreads = threadMXBean.getThreadInfo(deadLocks);
dump.append(String.format("%n"));
dump.append("Deadlock is detected!");
dump.append(String.format("%n"));
for (ThreadInfo threadInfo : deadlockedThreads)
{
dump.append(threadInfo);
}
}
return dump.toString();
}
}