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85 lines
3.8 KiB
Java
85 lines
3.8 KiB
Java
/*
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* Copyright (c) 2026, 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 8197901 8209758
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* @summary Log relocation in class redefinition.
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* @library /test/lib
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* @modules java.compiler
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* java.instrument
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* @requires vm.jvmti
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* @run main RedefineClassHelper
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* @run driver RelocatorTest
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*/
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.process.ProcessTools;
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// package access top-level class to avoid problem with RedefineClassHelper
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// and nested types.
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class RelocatorTest_B {
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public static void test() {
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System.out.println("Old class");
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}
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}
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public class RelocatorTest {
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public static class InternalClass {
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public static String newB =
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"class RelocatorTest_B {" +
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" public static void test() { " +
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" System.out.println(\"New class\");" +
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" System.out.println(\"Need more ldc's in this class\");" +
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" System.out.println(\"Another ldc\");" +
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" }" +
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"}";
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public static void main(String[] args) throws Exception {
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RelocatorTest_B.test();
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RedefineClassHelper.redefineClass(RelocatorTest_B.class, newB);
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RelocatorTest_B.test();
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}
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}
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public static void main(String[] args) throws Exception {
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ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder("-javaagent:redefineagent.jar",
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"-XX:+UnlockDiagnosticVMOptions",
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"-XX:+StressLdcRewrite",
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"-Xlog:relocator=trace,redefine+class+constantpool=trace",
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InternalClass.class.getName());
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OutputAnalyzer output = ProcessTools.executeProcess(pb);
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output.shouldContain("Old class");
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output.shouldMatch("\\[debug\\]\\[relocator *\\] Space at: 3 Size: 3");
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output.shouldMatch("\\[debug\\]\\[relocator *\\] \\{method\\} .* 'test' '\\(\\)V' in 'RelocatorTest_B'");
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output.shouldMatch("\\[trace\\]\\[relocator *\\] ChangeWiden. bci: 3 New_ilen: 3");
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output.shouldMatch("\\[debug\\]\\[relocator *\\] Space at: 12 Size: 3");
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output.shouldMatch("\\[debug\\]\\[relocator *\\] \\{method\\} .* 'test' '\\(\\)V' in 'RelocatorTest_B'");
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output.shouldMatch("\\[trace\\]\\[relocator *\\] ChangeWiden. bci: 12 New_ilen: 3");
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output.shouldMatch("\\[debug\\]\\[relocator *\\] Space at: 21 Size: 3");
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output.shouldMatch("\\[debug\\]\\[relocator *\\] \\{method\\} .* 'test' '\\(\\)V' in 'RelocatorTest_B'");
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output.shouldContain("New class");
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output.shouldHaveExitValue(0);
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}
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}
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