/* * Copyright (c) 2003, 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. */ package nsk.jvmti.unit.StackTrace; import java.io.PrintStream; public class JvmtiTest { final static int JCK_STATUS_BASE = 95; final static int THREADS_LIMIT = 200; final static String NAME_PREFIX = "JvmtiTest-"; static int fail_id = 0; native static int GetResult(); native static void CreateRawMonitor(int i); native static void RawMonitorEnter(int i); native static void RawMonitorExit(int i); native static void RawMonitorWait(int i); native static void GetStackTrace(TestThread t); native static int GetFrameCount(TestThread t); static volatile int thrCount = 0; public static void main(String args[]) { args = nsk.share.jvmti.JVMTITest.commonInit(args); // produce JCK-like exit status. System.exit(run(args, System.out) + JCK_STATUS_BASE); } public static int run(String args[], PrintStream out) { CreateRawMonitor(0); CreateRawMonitor(4); TestThread t[] = new TestThread[THREADS_LIMIT]; RawMonitorEnter(4); for (int i=0; i < THREADS_LIMIT; i++) { t[i] = new TestThread(NAME_PREFIX + thrCount); t[i].start(); } for (int i=0; i < THREADS_LIMIT-1; i++) { GetStackTrace(t[i]); GetFrameCount(t[i]); } RawMonitorExit(4); try { for (int i=0; i < THREADS_LIMIT; i++) { t[i].join(); } } catch (InterruptedException e) { throw new Error("Unexpected: " + e); } return GetResult() + fail_id; } static class TestThread extends Thread { static int counter=0; int ind; public TestThread(String name) { super(name); } public void run() { thrCount++; foo(0); } public void foo(int i) { i++; if ( i < 10 ) { foo(i); } else { RawMonitorEnter(4); RawMonitorExit(4); } } } }