57 lines
2.2 KiB
Java
57 lines
2.2 KiB
Java
/*
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* Copyright (c) 2021, 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 jdk.internal.org.objectweb.asm.*;
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public class AsmClasses implements Opcodes {
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// class B extends A {} to generate ClassCircularityError
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// Can't use jcod, jasm or InMemoryCompiler because the compiler will
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// see that A extends B and fail.
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public static byte[] dumpB() throws Exception {
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ClassWriter classWriter = new ClassWriter(0);
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FieldVisitor fieldVisitor;
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RecordComponentVisitor recordComponentVisitor;
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MethodVisitor methodVisitor;
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AnnotationVisitor annotationVisitor0;
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classWriter.visit(61, ACC_PUBLIC | ACC_SUPER, "B", null, "A", null);
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classWriter.visitSource("B.java", null);
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methodVisitor = classWriter.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
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methodVisitor.visitCode();
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Label label0 = new Label();
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methodVisitor.visitLabel(label0);
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methodVisitor.visitLineNumber(24, label0);
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methodVisitor.visitVarInsn(ALOAD, 0);
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methodVisitor.visitMethodInsn(INVOKESPECIAL, "A", "<init>", "()V", false);
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methodVisitor.visitInsn(RETURN);
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methodVisitor.visitMaxs(1, 1);
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methodVisitor.visitEnd();
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classWriter.visitEnd();
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return classWriter.toByteArray();
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}
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}
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