sun/jdi/MethodEntryExitEvents.java

	MethodEntryExitEvents.java revision 0
0N/A/*
0N/A * Copyright 2001-2007 Sun Microsystems, Inc.  All Rights Reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
0N/A * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
0N/A * CA 95054 USA or visit www.sun.com if you need additional information or
0N/A * have any questions.
0N/A */
0N/A
0N/A/**
0N/A *  @test
0N/A *  @bug 4409241 4432820
0N/A *  @summary Test the bug fix for: MethodExitEvents disappear when Object-Methods are called from main
0N/A *  @author Tim Bell
0N/A *
0N/A *  @run build TestScaffold VMConnection TargetListener TargetAdapter
0N/A *  @run compile -g MethodEntryExitEvents.java
0N/A *  @run main MethodEntryExitEvents SUSPEND_EVENT_THREAD MethodEntryExitEventsDebugee
0N/A *  @run main MethodEntryExitEvents SUSPEND_NONE MethodEntryExitEventsDebugee
0N/A *  @run main MethodEntryExitEvents SUSPEND_ALL MethodEntryExitEventsDebugee
0N/A */
0N/Aimport com.sun.jdi.*;
0N/Aimport com.sun.jdi.event.*;
0N/Aimport com.sun.jdi.request.*;
0N/Aimport java.util.*;
0N/A
0N/Aclass t2 {
0N/A    public static void sayHello1(int i, int j) {
0N/A        sayHello2(i, j);
0N/A    }
0N/A    public static void sayHello2(int i, int j) {
0N/A        sayHello3(i, j);
0N/A    }
0N/A    public static void sayHello3(int i, int j) {
0N/A        sayHello4(i, j);
0N/A    }
0N/A    public static void sayHello4(int i, int j) {
0N/A        sayHello5(i, j);
0N/A    }
0N/A    public static void sayHello5(int i, int j) {
0N/A        if (i < 2) {
0N/A            sayHello1(++i, j);
0N/A        } else {
0N/A            System.out.print  ("MethodEntryExitEventsDebugee: ");
0N/A            System.out.print  ("    -->> Hello.  j is: ");
0N/A            System.out.print  (j);
0N/A            System.out.println(" <<--");
0N/A        }
0N/A    }
0N/A}
0N/A
0N/Aclass MethodEntryExitEventsDebugee {
0N/A    public static void loopComplete () {
0N/A        /*
0N/A         * The implementation here is deliberately inefficient
0N/A         * because the debugger is still watching this method.
0N/A         */
0N/A        StringBuffer sb = new StringBuffer();
0N/A        sb.append ("MethodEntryExitEventsDebugee: ");
0N/A        sb.append ("Executing loopComplete method for a graceful shutdown...");
0N/A        String s = sb.toString();
0N/A        for (int i = 0; i < s.length(); i++) {
0N/A            char c = s.charAt(i);
0N/A            System.out.print(c);
0N/A        }
0N/A        System.out.println();
0N/A    }
0N/A    public static void main(String[] args) {
0N/A        t2 test = new t2();
0N/A        for (int j = 0; j < 3; j++) {
0N/A            test.sayHello1(0, j);
0N/A        }
0N/A        loopComplete();
0N/A    }
0N/A}
0N/A
0N/A
0N/Apublic class MethodEntryExitEvents extends TestScaffold {
0N/A    int sessionSuspendPolicy = EventRequest.SUSPEND_ALL;
0N/A    StepRequest stepReq = null; //Only one step request allowed per thread
0N/A    boolean finishedCounting = false;
0N/A
0N/A    /*
0N/A     * Enter main() , then t2.<init>, then sayHello[1,2,3,4,5] 15 times 3 loops,
0N/A     * then loopComplete()
0N/A     */
0N/A    final int expectedEntryCount = 1 + 1 + (15 * 3) + 1;
0N/A    int methodEntryCount = 0;
0N/A
0N/A    /*
0N/A     * Exit t2.<init>, then sayHello[1,2,3,4,5] 15 times 3 loopa
0N/A     * (event monitoring is cancelled before we exit loopComplete() or main())
0N/A     */
0N/A    final int expectedExitCount = 1 + (15 * 3);
0N/A    int methodExitCount = 0;
0N/A
0N/A    /*
0N/A     * Class patterns for which we don't want events (copied
0N/A     * from the "Trace.java" example):
0N/A     *     http://java.sun.com/javase/technologies/core/toolsapis/jpda/
0N/A     */
0N/A    private String[] excludes = {"java.*", "javax.*", "sun.*",
0N/A                                 "com.sun.*"};
0N/A
0N/A    MethodEntryExitEvents (String args[]) {
0N/A        super(args);
0N/A    }
0N/A
0N/A    private void usage(String[] args) throws Exception {
0N/A        StringBuffer sb = new StringBuffer("Usage: ");
0N/A        sb.append(System.getProperty("line.separator"));
0N/A        sb.append("  java ");
0N/A        sb.append(getClass().getName());
0N/A        sb.append(" [SUSPEND_NONE | SUSPEND_EVENT_THREAD | SUSPEND_ALL]");
0N/A        sb.append(" [MethodEntryExitEventsDebugee | -connect <connector options...>] ");
0N/A        throw new Exception (sb.toString());
0N/A    }
0N/A
0N/A    public static void main(String[] args)      throws Exception {
0N/A        MethodEntryExitEvents meee = new MethodEntryExitEvents (args);
0N/A        meee.startTests();
0N/A    }
0N/A
0N/A    public void exceptionThrown(ExceptionEvent event) {
0N/A        System.out.println("Exception: " + event.exception());
0N/A        System.out.println(" at catch location: " + event.catchLocation());
0N/A
0N/A        // Step to the catch
0N/A        if (stepReq == null) {
0N/A            stepReq =
0N/A                eventRequestManager().createStepRequest(event.thread(),
0N/A                                                        StepRequest.STEP_MIN,
0N/A                                                        StepRequest.STEP_INTO);
            stepReq.addCountFilter(1);  // next step only
            stepReq.setSuspendPolicy(EventRequest.SUSPEND_ALL);
        }
        stepReq.enable();
    }
    public void stepCompleted(StepEvent event) {
        System.out.println("stepCompleted: line#=" +
                           event.location().lineNumber() +
                           " event=" + event);
        // disable the step and then run to completion
        //eventRequestManager().deleteEventRequest(event.request());
        StepRequest str= (StepRequest)event.request();
        str.disable();
    }
    public void methodEntered(MethodEntryEvent event) {
        if (! finishedCounting) {
            // We have to count the entry to loopComplete, but
            // not the exit
            methodEntryCount++;
            System.out.print  (" Method entry number: ");
            System.out.print  (methodEntryCount);
            System.out.print  ("  :  ");
            System.out.println(event);
            if ("loopComplete".equals(event.method().name())) {
                finishedCounting = true;
            }
        }
    }

    public void methodExited(MethodExitEvent event) {
        if (! finishedCounting){
            methodExitCount++;
            System.out.print  (" Method exit  number: ");
            System.out.print  (methodExitCount);
            System.out.print  ("  :  ");
            System.out.println(event);
        }
    }

    protected void runTests() throws Exception {
        if (args.length < 1) {
            usage(args);
        }
        //Pick up the SUSPEND_xxx in first argument
        if ("SUSPEND_NONE".equals(args[0])) {
            sessionSuspendPolicy = EventRequest.SUSPEND_NONE;
        } else if ("SUSPEND_EVENT_THREAD".equals(args[0])) {
            sessionSuspendPolicy = EventRequest.SUSPEND_EVENT_THREAD;
        } else if ("SUSPEND_ALL".equals(args[0])) {
            sessionSuspendPolicy = EventRequest.SUSPEND_ALL;
        } else {
            usage(args);
        }
        System.out.print("Suspend policy is: ");
        System.out.println(args[0]);

        // Skip the test arg
        String[] args2 = new String[args.length - 1];
        System.arraycopy(args, 1, args2, 0, args.length - 1);

        if (args2.length < 1) {
            usage(args2);
        }
        List argList = new ArrayList(Arrays.asList(args2));
        System.out.println("run args: " + argList);
        connect((String[]) argList.toArray(args2));
        waitForVMStart();

        try {

            /*
             * Ask for Exception events
             */
            ExceptionRequest exceptionRequest =
                eventRequestManager().createExceptionRequest(null, // refType (null == all instances)
                                                             true, // notifyCaught
                                                             true);// notifyUncaught
            exceptionRequest.setSuspendPolicy(EventRequest.SUSPEND_ALL);
            exceptionRequest.enable();

            /*
             * Ask for method entry events
             */
            MethodEntryRequest entryRequest =
               eventRequestManager().createMethodEntryRequest();
            for (int i=0; i<excludes.length; ++i) {
                entryRequest.addClassExclusionFilter(excludes[i]);
            }
            entryRequest.setSuspendPolicy(sessionSuspendPolicy);
            entryRequest.enable();

            /*
             * Ask for method exit events
             */
            MethodExitRequest exitRequest =
                eventRequestManager().createMethodExitRequest();

            for (int i=0; i<excludes.length; ++i) {
                exitRequest.addClassExclusionFilter(excludes[i]);
            }
            exitRequest.setSuspendPolicy(sessionSuspendPolicy);
            exitRequest.enable();

            /*
             * We are now set up to receive the notifications we want.
             * Here we go.  This adds 'this' as a listener so
             * that our handlers above will be called.
             */

            listenUntilVMDisconnect();
            System.out.println("All done...");

        } catch (Exception ex){
            ex.printStackTrace();
            testFailed = true;
        }

        if ((methodEntryCount != expectedEntryCount) ||
            (methodExitCount != expectedExitCount)) {
            testFailed = true;
        }
        if (!testFailed) {
            System.out.println();
            System.out.println("MethodEntryExitEvents: passed");
            System.out.print  ("    Method entry count: ");
            System.out.println(methodEntryCount);
            System.out.print  ("    Method exit  count: ");
            System.out.println(methodExitCount);
        } else {
            System.out.println();
            System.out.println("MethodEntryExitEvents: failed");
            System.out.print  ("    expected method entry count: ");
            System.out.println(expectedEntryCount);
            System.out.print  ("    observed method entry count: ");
            System.out.println(methodEntryCount);
            System.out.print  ("    expected method exit  count: ");
            System.out.println(expectedExitCount);
            System.out.print  ("    observed method exit  count: ");
            System.out.println(methodExitCount);
            throw new Exception("MethodEntryExitEvents: failed");
        }
    }
}