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/*
* Copyright (c) 2007, 2020, 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
* @key randomness
*
* @summary converted from VM Testbase nsk/monitoring/CompilationMXBean/comptimemon001.
* VM Testbase keywords: [quick, monitoring]
* VM Testbase readme:
* DESCRIPTION
* The test checks that
* CompilationMXBean.isCompilationTimeMonitoringSupported()
* method returns true. The test performs directly access to management
* metrics within the same JVM.
* Note, that the test is correct ONLY against Sun's Hotspot VM. This
* feature is optional and the method may return either true, or false.
* However, Sun's implementation must always return true.
* The test passes, if the JVM has no compilation system, for example the
* test is invoked with -Xint option.
* COMMENT
* Fixed the bug:
* 4953476 TEST_BUG: The spec is updated accoring to 4944573 and 4947536
*
* @library /vmTestbase
* /test/lib
* @run main/othervm/timeout=300 nsk.monitoring.CompilationMXBean.comptimemon001.comptimemon001
*/
package nsk.monitoring.CompilationMXBean.comptimemon001;
import java.io.*;
import nsk.share.test.*;
import nsk.share.TestFailure;
import nsk.monitoring.share.*;
import java.lang.management.*;
public class comptimemon001 extends MonitoringTestBase implements Initializable {
private CompilationMXBean compilation;
private int iterations = 30;
public void initialize() {
if (monitoringFactory.hasCompilationMXBean())
compilation = monitoringFactory.getCompilationMXBean();
}
public boolean testCompilationTimeMonitoringSupported() {
if (compilation == null) {
// The JVM has no compilation system, for example the test is
// invoked with -Xint option
log.info("The JVM has no compilation system.");
return false;
} else if (!compilation.isCompilationTimeMonitoringSupported()) {
// Check the method is... for the specified way of access to MBeans
log.error("Monitoring of compilation time is not supported.\n");
setFailed(true);
return false;
}
return true;
}
private void testCompilationTimeOne() {
long sleepTime = LocalRandom.randomPauseTime();
long startTime = compilation.getTotalCompilationTime();
if (startTime < 0)
throw new TestFailure("getTotalCompilationTime < 0: " + startTime);
try {
Thread.sleep(sleepTime);
} catch (InterruptedException e) {
throw new TestFailure("Sleep was interrupted.");
}
long finishTime = compilation.getTotalCompilationTime();
if (finishTime < 0)
throw new TestFailure("getTotalCompilationTime < 0: " + finishTime);
if (finishTime < startTime)
throw new TestFailure("getTotalCompilationTime before sleep: " + startTime
+ " > getTotalCompilationTime after sleep: " + finishTime);
}
public void testCompilationTime() {
for (int i = 0; i < iterations; ++i)
testCompilationTimeOne();
}
public void run() {
if (!testCompilationTimeMonitoringSupported())
return;
testCompilationTime();
}
public static void main(String[] args) {
Monitoring.runTest(new comptimemon001(), args);
}
}
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