| #!/bin/sh |
| |
| # |
| # Copyright (c) 2006, 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. |
| # |
| # 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 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 'FAIL:' |
| pass |