test/jdk/com/sun/jdi/RedefineChangeClassOrder.java
author amenkov
Wed, 12 Sep 2018 12:29:40 -0700
changeset 51716 e7459270ca63
parent 47216 test/jdk/com/sun/jdi/RedefineChangeClassOrder.sh@71c04702a3d5
permissions -rw-r--r--
8210560: [TEST] convert com/sun/jdi redefineClass-related tests Reviewed-by: jcbeyler, sspitsyn
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/*
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 * Copyright (c) 2006, 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 6270982
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 * @summary Redefine a class so that the order of external classes in
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 *          the constant pool are changed.
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 * @comment converted from test/jdk/com/sun/jdi/RedefineChangeClassOrder.sh
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 *
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 * @library /test/lib
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 * @compile -g RedefineChangeClassOrder.java
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 * @run main/othervm RedefineChangeClassOrder
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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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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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class RedefineChangeClassOrderTarg {
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    public static void main(String[] args) {
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        new RedefineChangeClassOrderTarg().hi(false);
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        new RedefineChangeClassOrderTarg().hi(true);  // @1 breakpoint
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    }
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    public void hi(boolean expected) {
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        boolean isNewVersion = false; // @1 commentout
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        // @1 uncomment boolean isNewVersion = true;
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        if (expected == isNewVersion) {
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            System.out.println("PASS: expected and isNewVersion match.");
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        } else {
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            System.out.println("FAIL: expected and isNewVersion do not match.");
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            System.out.println("expected=" + expected
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              + "  isNewVersion=" + isNewVersion);
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        }
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        Foo1 foo1 = new Foo1();  // @1 commentout
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        foo1.hi();  // @1 commentout
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        // This Hack code block exists to force some verification_type_info
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        // objects of subtype Object_variable_info into the StackMapTable.
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        //
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        // In the redefined code, the above Foo1 code is effectively
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        // moved after the Foo2 code below which causes things to be
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        // layed out in a different order in the constant pool. The
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        // cpool_index in the Object_variable_info has to be updated
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        // in the redefined code's StackMapTable to refer to right
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        /// constant pool index in the merged constant pool.
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        Hack hack = getClass().getAnnotation(Hack.class);
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        if (hack != null) {
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            String class_annotation = hack.value();
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            System.out.println("class annotation is: " + class_annotation);
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            if (isNewVersion) {
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                if (class_annotation.equals("JUNK")) {
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                    System.out.println("class_annotation is JUNK.");
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                } else {
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                    System.out.println("class_annotation is NOT JUNK.");
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                }
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            }
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        }
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        Foo2 foo2 = new Foo2();
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        foo2.hi();
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        // @1 uncomment Foo1 foo1 = new Foo1();
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        // @1 uncomment foo1.hi();
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    }
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}
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class Foo1 {
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    public void hi() {
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        System.out.println("Hello from " + getClass());
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    }
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}
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class Foo2 {
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    public void hi() {
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        System.out.println("Hello from " + getClass());
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    }
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface Hack {
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    String value();
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}
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public class RedefineChangeClassOrder extends JdbTest {
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    public static void main(String argv[]) {
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        new RedefineChangeClassOrder().run();
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    }
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    private RedefineChangeClassOrder() {
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        super(DEBUGGEE_CLASS, SOURCE_FILE);
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    }
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    private static final String DEBUGGEE_CLASS = RedefineChangeClassOrderTarg.class.getName();
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    private static final String SOURCE_FILE = "RedefineChangeClassOrder.java";
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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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        redefineClass(1, "-g");
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        jdb.contToExit(1);
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        new OutputAnalyzer(getDebuggeeOutput())
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                .shouldNotContain("FAIL:");
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    }
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}