/*

 * Copyright 2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/**

 *  @test

 *  @bug 6517249

 *  @summary JDWP: Cannot do an invokeMethod after a popFrames operation

 *

 *  @author jjh

 *

 *  @run build TestScaffold VMConnection TargetListener TargetAdapter

 *  @run compile -g PopAndInvokeTest.java

 *  @run main PopAndInvokeTest

 */

import com.sun.jdi.*;

import com.sun.jdi.event.*;

import java.util.*;

class PopAndInvokeTarg {

    static boolean waiting = false;

    public static void A() {

        System.out.println("    debuggee: in A");

    }

    public static void invokeee() {

        System.out.println("    debuggee: invokee");

    }

    public static void waiter() {

        if (waiting) {

            return;

        }

        waiting = true;

        System.out.println("    debuggee: in waiter");

        while (true) {

        }

    }

    public static void main(String[] args) {

        System.out.println("    debuggee: Howdy!");

        /*

         * Debugger will bkpt in A, popFrames back to here

         * and then do an invokeMethod on invokeee.

         * This should work.

         */

        A();

        /*

         * Debugger will resume and we will enter

         * waiter().  Debugger will then do a suspend,

         * a popFrames back to here, and an invoke

         * which should fail.

         */

        waiter();

        System.out.println("    debuggee: Goodbye from PopAndInvokeTarg!");

    }

}

    /********** test program **********/

public class PopAndInvokeTest extends TestScaffold {

    ClassType targetClass;

    ThreadReference mainThread;

    PopAndInvokeTest (String args[]) {

        super(args);

    }

    public static void main(String[] args)      throws Exception {

        new PopAndInvokeTest(args).startTests();

    }

    StackFrame frameFor(String methodName) throws Exception {

        Iterator it = mainThread.frames().iterator();

        while (it.hasNext()) {

            StackFrame frame = (StackFrame)it.next();

            if (frame.location().method().name().equals(methodName)) {

                return frame;

            }

        }

        failure("FAIL: " + methodName + " not on stack");

        return null;

    }

    /********** test core **********/

    protected void runTests() throws Exception {

        /*

         * Get to the top of main()

         * to determine targetClass and mainThread

         */

        runOnce();

    }

    void runOnce() throws Exception {

        BreakpointEvent bpe = startTo("PopAndInvokeTarg", "A", "()V");

        targetClass = (ClassType)bpe.location().declaringType();

        mainThread = bpe.thread();

        /*

         * Verify that an invokeMethod works ok after a popFrames

         * in a thread suspended by an event.

         */

        mainThread.popFrames(frameFor("A"));

        System.out.println("Debugger: Popped back to the call to A()");

        System.out.println("Debugger: Doing invoke");

        Method invokeeeMethod = (Method)targetClass.methodsByName("invokeee").get(0);

        try {

            targetClass.invokeMethod(mainThread, invokeeeMethod,

                                     new ArrayList(), 0);

        } catch (Exception ex) {

            failure("failure: invoke got unexpected exception: " + ex);

            ex.printStackTrace();

        }

        System.out.println("Debugger: invoke done");

        /*

         * Verify that an invokeMethod gets an IncompatibleThreadStateException

         * after a popFrames in a thread that is _not_ suspended by an event.

         */

        System.out.println("Debugger: Resuming debuggee");

        vm().resume();

        Field waiting = targetClass.fieldByName("waiting");

        while (true) {

            // Wait until debuggee enters the 'waiting' method.

            BooleanValue bv= (BooleanValue)targetClass.getValue(waiting);

            if (!bv.value()) {

                try {

                    Thread.sleep(10);

                } catch (InterruptedException ee) {

                }

                continue;

            }

            // debuggee has entered the waiting method

            System.out.println("Debugger: Suspending debuggee");

            vm().suspend();

            System.out.println("Debugger: Popping frame for waiter");

            mainThread.popFrames(frameFor("waiter"));

            System.out.println("Debugger: Invoking method");

            try {

                targetClass.invokeMethod(mainThread, invokeeeMethod,

                                         new ArrayList(), 0);

            } catch (IncompatibleThreadStateException ee) {

                System.out.println("Debugger: Success: Got expected IncompatibleThreadStateException");

                break;

            } catch (Exception ee) {

                failure("FAIL: Got unexpected exception: " + ee);

                break;

            }

            failure("FAIL: Did not get IncompatibleThreadStateException " +

                    "when debuggee is not suspended by an event");

        }

        listenUntilVMDisconnect();

        if (testFailed) {

            throw new Exception("PopAndInvokeTest failed");

        }

        System.out.println("Passed:");

    }

}