141 lines
4.5 KiB
Java
141 lines
4.5 KiB
Java
/*
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* Copyright (c) 2002, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4724076
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* @summary Redefine does not work in for/while loop
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* @comment converted from test/jdk/com/sun/jdi/RedefineMulti.sh
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*
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* @library /test/lib
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* @compile -g RedefineMulti.java
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* @run main/othervm RedefineMulti
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*/
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/*
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* The failure occurs when a method is active and
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* a method that it calls multiple times is redefined
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* more than once.
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*/
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import jdk.test.lib.process.OutputAnalyzer;
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import lib.jdb.JdbCommand;
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import lib.jdb.JdbTest;
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class RedefineMultiTarg {
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String field1;
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String field2;
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// The first time thru the loop in start,
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// "Before update..." should be printed.
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// After the first redefine, "After update..." should be printed
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// After the 2nd redefine, "abcde..." should be printed.
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// The bug is that "After update..." is printed instead because
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// stat() calls version 2 of doSomething() instead of
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// version 3.
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private void doSomething() {
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System.out.println("Before update..."); // @1 commentout
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// @1 uncomment System.out.println("After update..."); // @2 commentout
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// @2 uncomment System.out.println("abcde...");
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}
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public void start() {
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for (int i=0; i < 3; i++) {
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doSomething(); // @1 breakpoint here line 16
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System.out.println("field1 = " + field1);
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System.out.println("field2 = " + field2);
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}
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// Redefinex myx = new Redefinex();
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// for (int i = 0; i < 5; i++) {
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// myx.methodx1(); // line 22
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// System.out.println("fieldx1 = " + myx.fieldx1);
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// System.out.println("fieldx2 = " + myx.fieldx2);
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// }
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}
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public static void main(String[] args) {
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RedefineMultiTarg xxx = new RedefineMultiTarg();
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xxx.field1 = "field1";
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xxx.field2 = "field2";
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xxx.start();
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}
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}
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class Redefinex {
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public String fieldx1;
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public String fieldx2;
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Redefinex() {
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fieldx1 = "fieldx1";
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fieldx2 = "fieldx2";
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}
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public void methodx1() {
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System.out.println("redefinex 1");
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//System.out.println("redefinex 2");
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//System.out.println("redefinex 3");
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}
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}
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/*********
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Steps to reproduce this problem:
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a. add line breakpoint in start()
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b. debug
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c. when breakpoint is hit, type continue. You should see output "Before update..."
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d. change "Before update" to "After update"
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e. redefine, and set line breakpoint (see step a)
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f. type continue. You should see output "After update"
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g. change "After update" to "abcde"
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h. redefine, and set line breakpoint (see step a)
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i. type continue. The output is shown as "After update"
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j. to see "abcde" output, users will have to pop the stack, and re-execute method start().
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************/
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public class RedefineMulti extends JdbTest {
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public static void main(String argv[]) {
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new RedefineMulti().run();
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}
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private RedefineMulti() {
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super(RedefineMultiTarg.class.getName(), "RedefineMulti.java");
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}
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@Override
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protected void runCases() {
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setBreakpoints(1);
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jdb.command(JdbCommand.run());
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jdb.command(JdbCommand.cont());
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redefineClass(1, "-g");
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setBreakpoints(1);
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jdb.command(JdbCommand.cont());
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redefineClass(2, "-g");
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jdb.contToExit(1);
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new OutputAnalyzer(getDebuggeeOutput())
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.shouldNotContain("Internal exception:")
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.shouldContain("abcde");
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}
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}
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