#!/bin/sh

#
# Copyright (c) 2002, 2014, 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.
#
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# or visit www.oracle.com if you need additional information or have any
# questions.
#

# @test
# @bug 4622663
# @key intermittent
# @summary redefine and pop top frame from jdb gets assertion failure.
# The failure occurs with debug java when the pop deletes the
# line that called the method which is being popped.
# @author Jim Holmlund/Swamy Venkataramanappa
#
# @run shell RedefinePop.sh


# assert(index<len, "should have found method")
#  [8] report_assertion_failure(0xfe2a54d9, 0xfe2a54e3, 0x2cc, 0xfe2a5527, 0xfffffff8, 0x3f2b8), at 0xfda1e5e8
# [9] methodOopDesc::jni_id(0xf590a2f0, 0x3e868, 0x8, 0xffbed760, 0xf590a3ac, 0xffbed664), at 0xfdcd7a2c
 # [10] JvmdiThreadState::compare_and_set_current_location(0x3f450, 0xf590a2f0, 0xf590a33f, 0x1, 0x1, 0x3e868), at 0xfdc0f670
#  [11] jvmdi::at_single_stepping_point(0x3e868, 0xf590a2f0, 0xf590a33f, 0x5, 0x0, 0x0), at 0xfdc29184
#  [12] InterpreterRuntime::at_safepoint(0x3e868, 0xb6, 0x2, 0xf9c28744, 0xf590a038, 0xffbed880), at 0xfdb0d590

# These are variables that can be set to control execution

compileOptions=-g

createJavaFile()
{
    cat <<EOF > $1.java.1

public class $1 {
    static public void main(String[] args) {
       $1 mine = new $1();
       mine.a1(44);   // @1 delete the call that we are in when the pop occurs
       mine.a4();
    }

    public void a1(int p1) {
      System.out.println("a1: @1 breakpoint here");
    }

    public void a4() {
      System.out.println("a4: The next line should not say Ni!");
      System.out.println("a4: Ni!");   // @1 delete
    }
}
EOF
}

# This is called to feed cmds to jdb.
dojdbCmds()
{
    setBkpts @1
    runToBkpt @1
    redefineClass @1
    cmd pop
    cmd allowExit 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 "Internal exception:"
pass