jdk-24/test/jdk/java/lang/Thread/CountStackFrames.java
Alan Bateman 6d98a3bdd8 8205132: Degrade Thread.countStackFrames() to throw UOE
Reviewed-by: mchung, dholmes, dcubed
2019-10-31 16:45:58 +00:00

57 lines
1.9 KiB
Java

/*
* Copyright (c) 2019, 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 8205132
* @summary Test Thread.countStackFrames()
* @run testng CountStackFrames
*/
import org.testng.annotations.Test;
public class CountStackFrames {
// current thread
@Test(expectedExceptions = UnsupportedOperationException.class)
public void testCurrentThread() {
Thread.currentThread().countStackFrames();
}
// unstarted thread
@Test(expectedExceptions = UnsupportedOperationException.class)
public void testUnstartedThread() {
Thread thread = new Thread(() -> { });
thread.countStackFrames();
}
// terminated thread
@Test(expectedExceptions = UnsupportedOperationException.class)
public void testTerminatedThread() throws Exception {
Thread thread = new Thread(() -> { });
thread.start();
thread.join();
thread.countStackFrames();
}
}