| /* |
| * Copyright (c) 2017, 2018, 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 stress |
| * |
| * @summary converted from VM Testbase nsk/monitoring/stress/thread/strace007. |
| * VM Testbase keywords: [stress, monitoring, nonconcurrent] |
| * VM Testbase readme: |
| * DESCRIPTION |
| * The test checks that ThreadInfo.getStackTrace() returns correct results for |
| * a thread in "running" state. |
| * Main thread starts a number of auxiliary threads. This number is specified |
| * in "-threadCount" option. Auxiliary threads begin a recursion until they |
| * reach specified depth ("-depth" option). Each thread may use pure java |
| * and/or native methods based on "-invocationType" option. Then the threads |
| * wait until they get a notification from main thread. So, those auxiliary |
| * threads are definitly in "running" state when main thread performs their |
| * checks. |
| * Main thread makes a snapshot of stack trace for all threads and checks it: |
| * 1. If a thread is alive, ThreadMonitor.getThreadInfo(long, -1) must |
| * return not null ThreadInfo. |
| * 2. The length of a trace must not be greater than (depth + 3). Number |
| * of recursionJava() or recursionNative() methods must not be greater |
| * than depth, also one Object.wait() or Thread.yield() method, one |
| * run(), and one waitForSign(). |
| * 3. The latest method of the stack trace must be RunningThread.run(). |
| * 4. getClassName() and getMethodName() methods must return expected |
| * values for each element of the stack trace. |
| * If one of that testcases fail, the test also fails. |
| * After all threads are checked, main thread notifies them to complete their |
| * job. Then the test repeats the procedure with starting threads and |
| * performing checks ITERATIONS times. |
| * This particular test performs directly access to the MBeans' methods and |
| * uses pure java methods along with native methods in auxiliary threads. |
| * COMMENTS |
| * |
| * @library /vmTestbase |
| * /test/lib |
| * @run driver jdk.test.lib.FileInstaller . . |
| * @run main/othervm/native |
| * nsk.monitoring.stress.thread.strace001 |
| * -invocationType=mixed |
| * -threadCount=50 |
| * -depth=200 |
| */ |
| |
