| /* |
| * Copyright (c) 2002, 2018, 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 4724076 |
| * @summary Redefine does not work in for/while loop |
| * @comment converted from test/jdk/com/sun/jdi/RedefineMulti.sh |
| * |
| * @library /test/lib |
| * @compile -g RedefineMulti.java |
| * @run main/othervm RedefineMulti |
| */ |
| |
| /* |
| * The failure occurs when a method is active and |
| * a method that it calls multiple times is redefined |
| * more than once. |
| */ |
| |
| import jdk.test.lib.process.OutputAnalyzer; |
| import lib.jdb.JdbCommand; |
| import lib.jdb.JdbTest; |
| |
| class RedefineMultiTarg { |
| |
| String field1; |
| String field2; |
| |
| // The first time thru the loop in start, |
| // "Before update..." should be printed. |
| // After the first redefine, "After update..." should be printed |
| // After the 2nd redefine, "abcde..." should be printed. |
| // The bug is that "After update..." is printed instead because |
| // stat() calls version 2 of doSomething() instead of |
| // version 3. |
| private void doSomething() { |
| System.out.println("Before update..."); // @1 commentout |
| // @1 uncomment System.out.println("After update..."); // @2 commentout |
| // @2 uncomment System.out.println("abcde..."); |
| } |
| |
| public void start() { |
| for (int i=0; i < 3; i++) { |
| doSomething(); // @1 breakpoint here line 16 |
| System.out.println("field1 = " + field1); |
| System.out.println("field2 = " + field2); |
| } |
| // Redefinex myx = new Redefinex(); |
| // for (int i = 0; i < 5; i++) { |
| // myx.methodx1(); // line 22 |
| // System.out.println("fieldx1 = " + myx.fieldx1); |
| // System.out.println("fieldx2 = " + myx.fieldx2); |
| // } |
| } |
| |
| public static void main(String[] args) { |
| RedefineMultiTarg xxx = new RedefineMultiTarg(); |
| xxx.field1 = "field1"; |
| xxx.field2 = "field2"; |
| xxx.start(); |
| } |
| } |
| |
| class Redefinex { |
| public String fieldx1; |
| public String fieldx2; |
| |
| Redefinex() { |
| fieldx1 = "fieldx1"; |
| fieldx2 = "fieldx2"; |
| } |
| |
| public void methodx1() { |
| System.out.println("redefinex 1"); |
| //System.out.println("redefinex 2"); |
| //System.out.println("redefinex 3"); |
| } |
| } |
| |
| /********* |
| Steps to reproduce this problem: |
| a. add line breakpoint in start() |
| b. debug |
| c. when breakpoint is hit, type continue. You should see output "Before update..." |
| d. change "Before update" to "After update" |
| e. redefine, and set line breakpoint (see step a) |
| f. type continue. You should see output "After update" |
| g. change "After update" to "abcde" |
| h. redefine, and set line breakpoint (see step a) |
| i. type continue. The output is shown as "After update" |
| j. to see "abcde" output, users will have to pop the stack, and re-execute method start(). |
| ************/ |
| |
| public class RedefineMulti extends JdbTest { |
| |
| public static void main(String argv[]) { |
| new RedefineMulti().run(); |
| } |
| |
| private RedefineMulti() { |
| super(RedefineMultiTarg.class.getName(), "RedefineMulti.java"); |
| } |
| |
| @Override |
| protected void runCases() { |
| setBreakpoints(1); |
| jdb.command(JdbCommand.run()); |
| jdb.command(JdbCommand.cont()); |
| redefineClass(1, "-g"); |
| setBreakpoints(1); |
| jdb.command(JdbCommand.cont()); |
| redefineClass(2, "-g"); |
| jdb.contToExit(1); |
| |
| new OutputAnalyzer(getDebuggeeOutput()) |
| .shouldNotContain("Internal exception:") |
| .shouldContain("abcde"); |
| } |
| } |