test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/hotswap/HS202/hs202t002/hs202t002.java

/*
 * Copyright (c) 2007, 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
 *
 * @summary converted from VM Testbase nsk/jvmti/scenarios/hotswap/HS202/hs202t002.
 * VM Testbase keywords: [quick, jpda, jvmti, onload_only_caps, noras, redefine, feature_hotswap]
 * VM Testbase readme:
 * 1. Enable events Exception, MethodExit.
 * 2. Call a synchronized method which also obtains a monitor.
 * 3. Throw an uncaught exception in the method.
 * 4. Redefine a class within triggered callbacks Exception, MethodExit
 * caused by the uncaught exception. New version contains the changed
 * method.
 * 5. Pop a currently executed frame within callback MethodExit.
 *
 * @library /vmTestbase
 *          /test/lib
 * @run driver jdk.test.lib.FileInstaller . .
 * @build nsk.jvmti.scenarios.hotswap.HS202.hs202t002.hs202t002
 *
 * @comment compile newclassXX to bin/newclassXX
 * @run driver nsk.share.ExtraClassesBuilder
 *      newclass00
 *
 * @build ExecDriver
 * @run main/othervm/native PropertyResolvingWrapper ExecDriver --java
 *      "-agentlib:hs202t002=pathToNewByteCode=./bin -waittime=5 package=nsk samples=100 mode=compiled"
 *      nsk.jvmti.scenarios.hotswap.HS202.hs202t002.hs202t002
 */

package nsk.jvmti.scenarios.hotswap.HS202.hs202t002;
import nsk.share.jvmti.RedefineAgent;

public class hs202t002 extends RedefineAgent {

    public hs202t002(String[] arg) {
        super(arg);
    }

    public static void main(String[] arg) {
        arg = nsk.share.jvmti.JVMTITest.commonInit(arg);

        hs202t002 hsCase = new hs202t002(arg);
        System.exit(hsCase.runAgent());
    }

    public boolean agentMethod() {
        int state = 0;
        MyThread mt = new MyThread();
        try {
            mt.start();

            while (!isThreadSuspended(mt)) {
                Thread.yield();
            }

            if (!popThreadFrame(mt)) {
                throw new RuntimeException("error in popframe operation!");
            }

            if (!resumeThread(mt)) {
                throw new RuntimeException("error in resuming thread!");
            }

            mt.join();
            state = mt.getValue();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        finally {
            final int successState = 111;
            boolean passed = false;
            if (successState == state && isRedefined()) {
                passed = true;
                log.println(" ... Passed state (" + state + ")");
            } else {
                log.println(" ... Failed state (" + state + ")");
            }
            return passed;
        }
    }
    private native boolean popThreadFrame(Thread thread);
    private native boolean resumeThread(Thread thread);
    private native boolean isThreadSuspended(Thread thread);
}