#!/bin/sh

#

# Copyright (c) 2006, 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 6270982

#  @summary Redefine a class so that the order of external classes in

#  the constant pool are changed.

#  @author dcubed

#

#  @run shell RedefineChangeClassOrder.sh

compileOptions=-g

# Would like to run this test with this option:

# -XX:-FailOverToOldVerifier

# Uncomment this to see the JDI trace

#jdbOptions=-dbgtrace

createJavaFile()

{

    cat <<EOF > $1.java.1

import java.lang.annotation.Retention;

import java.lang.annotation.RetentionPolicy;

public class $1 {

    public static void main(String[] args) {

        new $1().hi(false);

        new $1().hi(true);  // @1 breakpoint

    }

    public void hi(boolean expected) {

        boolean isNewVersion = false; // @1 commentout

        // @1 uncomment boolean isNewVersion = true;

        if (expected == isNewVersion) {

            System.out.println("PASS: expected and isNewVersion match.");

        } else {

            System.out.println("FAIL: expected and isNewVersion do not match.");

            System.out.println("expected=" + expected

              + "  isNewVersion=" + isNewVersion);

        }

        Foo1 foo1 = new Foo1();  // @1 commentout

        foo1.hi();  // @1 commentout

        // This Hack code block exists to force some verification_type_info

        // objects of subtype Object_variable_info into the StackMapTable.

        //

        // In the redefined code, the above Foo1 code is effectively

        // moved after the Foo2 code below which causes things to be

        // layed out in a different order in the constant pool. The

        // cpool_index in the Object_variable_info has to be updated

        // in the redefined code's StackMapTable to refer to right

        /// constant pool index in the merged constant pool.

        Hack hack = getClass().getAnnotation(Hack.class);

        if (hack != null) {

            String class_annotation = hack.value();

            System.out.println("class annotation is: " + class_annotation);

            if (isNewVersion) {

                if (class_annotation.equals("JUNK")) {

                    System.out.println("class_annotation is JUNK.");

                } else {

                    System.out.println("class_annotation is NOT JUNK.");

                }

            }

        }

        Foo2 foo2 = new Foo2();

        foo2.hi();

        // @1 uncomment Foo1 foo1 = new Foo1();

        // @1 uncomment foo1.hi();

    }

}

class Foo1 {

    public void hi() {

        System.out.println("Hello from " + getClass());

    }

}

class Foo2 {

    public void hi() {

        System.out.println("Hello from " + getClass());

    }

}

@Retention(RetentionPolicy.RUNTIME)

@interface Hack {

    String value();

}

EOF

}

# This is called to feed cmds to jdb.

dojdbCmds()

{

    setBkpts @1

    runToBkpt @1

    redefineClass @1

    cmd cont

}

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

debuggeeFailIfPresent 'FAIL:'

pass