80 lines
2.8 KiB
Java
80 lines
2.8 KiB
Java
/*
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* Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* Utility class for ThreadMXBean tests
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*/
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import java.lang.management.ManagementFactory;
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import java.lang.management.ThreadMXBean;
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public class Utils {
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private static final ThreadMXBean tm = ManagementFactory.getThreadMXBean();
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private static final int MAX_RETRY = 200;
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public static boolean waitForBlockWaitingState(Thread t) {
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// wait for the thread to transition to the expected state
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int retryCount=0;
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while (t.getState() == Thread.State.RUNNABLE && retryCount < MAX_RETRY) {
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goSleep(100);
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retryCount++;
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}
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return (t.getState() != Thread.State.RUNNABLE);
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}
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public static boolean waitForThreadState(Thread t, Thread.State expected) {
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// wait for the thread to transition to the expected state
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int retryCount=0;
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while (t.getState() != expected && retryCount < MAX_RETRY) {
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goSleep(100);
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retryCount++;
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}
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return (t.getState() == expected);
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}
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public static void checkThreadState(Thread t, Thread.State expected) {
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waitForThreadState(t, expected);
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Thread.State state = tm.getThreadInfo(t.getId()).getThreadState();
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if (state == null) {
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throw new RuntimeException(t.getName() + " expected to have " +
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expected + " but got null.");
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}
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if (state != expected) {
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t.dumpStack();
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throw new RuntimeException(t.getName() +
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" expected to have " + expected + " but got " + state);
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}
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}
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public static void goSleep(long ms) {
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try {
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Thread.sleep(ms);
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} catch (InterruptedException e) {
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e.printStackTrace();
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System.out.println("TEST FAILED: Unexpected exception.");
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throw new RuntimeException(e);
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}
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}
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}
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