#!/bin/sh

#

# Copyright (c) 2009, 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

#  @bug 6862295

#  @summary Verify breakpoints still work after a full GC.

#  @author dcubed (based on the test program posted to the following

#  Eclipse thread https://bugs.eclipse.org/bugs/show_bug.cgi?id=279137)

#

#  @run shell BreakpointWithFullGC.sh

compileOptions=-g

# Hijacking the mode parameter to make sure we use a small amount

# of memory and can see what GC is doing.

mode="-Xmx32m -verbose:gc"

# Force use of a GC framework collector to see the original failure.

#mode="$mode -XX:+UseSerialGC"

# Uncomment this to see the JDI trace

#jdbOptions=-dbgtrace

createJavaFile()

{

    cat <<EOF > $1.java.1

import java.util.ArrayList;

import java.util.List;

public class $1 {

    public static List<Object> objList = new ArrayList<Object>();

    private static void init(int numObjs) {

        for (int i = 0; i < numObjs; i++) {

            objList.add(new Object());

        }

    }

    public static void main(String[] args) {

        for (int i = 0; i < 10; i++) {

            System.out.println("top of loop");     // @1 breakpoint

            init(1000000);

            objList.clear();

            System.out.println("bottom of loop");  // @1 breakpoint

        }

        System.out.println("end of test");         // @1 breakpoint

    }

}

EOF

}

# This is called to feed cmds to jdb.

dojdbCmds()

{

    setBkpts @1

    # get to the first loop breakpoint

    runToBkpt

    # 19 "cont" commands gets us through all the loop breakpoints.

    # Use for-loop instead of while-loop to avoid creating processes

    # for '[' and 'expr'.

    for ii in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19; do

        contToBkpt

    done

    # get to the last breakpoint

    contToBkpt

}

mysetup()

{

    if [ -z "$TESTSRC" ] ; then

        TESTSRC=.

    fi

    for ii in . $TESTSRC $TESTSRC/.. ; do

        if [ -r "$ii/ShellScaffold.sh" ] ; then

            . $ii/ShellScaffold.sh

            break

        fi

    done

}

# You could replace this next line with the contents

# of ShellScaffold.sh and this script will run just the same.

mysetup

runit

# make sure we hit the first breakpoint at least once

jdbFailIfNotPresent 'System\..*top of loop'

# make sure we hit the second breakpoint at least once

jdbFailIfNotPresent 'System\..*bottom of loop'

# make sure we hit the last breakpoint

jdbFailIfNotPresent 'System\..*end of test'

# make sure we had at least one full GC

debuggeeFailIfNotPresent 'Full GC'

# check for error message due to thread ID change

debuggeeFailIfPresent \

    'Exception in thread "event-handler" java.lang.NullPointerException'

pass