136 lines
4.6 KiB
Java
136 lines
4.6 KiB
Java
/*
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* Copyright (c) 2014, 2023, 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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import java.io.File;
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import java.io.FileOutputStream;
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import jdk.internal.org.objectweb.asm.ClassWriter;
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import jdk.internal.org.objectweb.asm.MethodVisitor;
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import static jdk.internal.org.objectweb.asm.Opcodes.*;
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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/*
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* @test OverriderMsg
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* @bug 8026894
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* @library /test/lib
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* @modules java.base/jdk.internal.org.objectweb.asm
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* java.base/jdk.internal.misc
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* java.management
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* @compile -XDignore.symbol.file OverriderMsg.java
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* @run driver OverriderMsg
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*/
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// This test checks that the super class name is included in the message when
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// a method is detected overriding a final method in its super class. The
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// asm part of the test creates these two classes:
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//
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// public class HasFinal {
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// public final void m(String s) { }
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// }
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//
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// public class Overrider extends HasFinal {
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// public void m(String s) { }
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// public static void main(String[] args) { }
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// }
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//
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public class OverriderMsg {
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public static void dump_HasFinal () throws Exception {
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ClassWriter cw = new ClassWriter(0);
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MethodVisitor mv;
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cw.visit(V1_7, ACC_PUBLIC + ACC_SUPER, "HasFinal", null, "java/lang/Object", null);
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{
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mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
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mv.visitCode();
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mv.visitVarInsn(ALOAD, 0);
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mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
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mv.visitInsn(RETURN);
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mv.visitMaxs(1, 1);
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mv.visitEnd();
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}
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{
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mv = cw.visitMethod(ACC_PUBLIC + ACC_FINAL, "m", "(Ljava/lang/String;)V", null, null);
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mv.visitCode();
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mv.visitInsn(RETURN);
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mv.visitMaxs(0, 2);
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mv.visitEnd();
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}
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cw.visitEnd();
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try (FileOutputStream fos = new FileOutputStream(new File("HasFinal.class"))) {
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fos.write(cw.toByteArray());
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}
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}
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public static void dump_Overrider () throws Exception {
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ClassWriter cw = new ClassWriter(0);
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MethodVisitor mv;
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cw.visit(V1_7, ACC_PUBLIC + ACC_SUPER, "Overrider", null, "HasFinal", null);
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{
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mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
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mv.visitCode();
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mv.visitVarInsn(ALOAD, 0);
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mv.visitMethodInsn(INVOKESPECIAL, "HasFinal", "<init>", "()V");
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mv.visitInsn(RETURN);
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mv.visitMaxs(1, 1);
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mv.visitEnd();
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}
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{
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mv = cw.visitMethod(ACC_PUBLIC, "m", "(Ljava/lang/String;)V", null, null);
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mv.visitCode();
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mv.visitInsn(RETURN);
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mv.visitMaxs(0, 2);
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mv.visitEnd();
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}
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{
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mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null);
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mv.visitCode();
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mv.visitInsn(RETURN);
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mv.visitMaxs(0, 1);
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mv.visitEnd();
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}
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cw.visitEnd();
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try (FileOutputStream fos = new FileOutputStream(new File("Overrider.class"))) {
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fos.write(cw.toByteArray());
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}
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}
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public static void main(String... args) throws Exception {
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dump_HasFinal();
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dump_Overrider();
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ProcessBuilder pb = ProcessTools.createTestJavaProcessBuilder("-cp", ".", "Overrider");
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OutputAnalyzer output = new OutputAnalyzer(pb.start());
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output.shouldContain(
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"java.lang.IncompatibleClassChangeError: class Overrider overrides final method HasFinal.m(Ljava/lang/String;)V");
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output.shouldHaveExitValue(1);
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}
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}
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