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test/runtime/8003720/Asmator.java@4bc28e6b9aba (annotated)

test/runtime/8003720/Asmator.java

Thu, 01 May 2014 14:57:02 -0700

author

amurillo

date

Thu, 01 May 2014 14:57:02 -0700

changeset 6651

4bc28e6b9aba

parent 4305

dad48145e775

child 6876

710a3c8b516e

permissions

-rw-r--r--

Added tag hs25.20-b13 for changeset 798f5b02be89

stefank@4305	1	/*
stefank@4305	2	* Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
stefank@4305	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
stefank@4305	4	*
stefank@4305	5	* This code is free software; you can redistribute it and/or modify it
stefank@4305	6	* under the terms of the GNU General Public License version 2 only, as
stefank@4305	7	* published by the Free Software Foundation.
stefank@4305	8	*
stefank@4305	9	* This code is distributed in the hope that it will be useful, but WITHOUT
stefank@4305	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
stefank@4305	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
stefank@4305	12	* version 2 for more details (a copy is included in the LICENSE file that
stefank@4305	13	* accompanied this code).
stefank@4305	14	*
stefank@4305	15	* You should have received a copy of the GNU General Public License version
stefank@4305	16	* 2 along with this work; if not, write to the Free Software Foundation,
stefank@4305	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
stefank@4305	18	*
stefank@4305	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
stefank@4305	20	* or visit www.oracle.com if you need additional information or have any
stefank@4305	21	* questions.
stefank@4305	22	*
stefank@4305	23	*/
stefank@4305	24
stefank@4305	25	import jdk.internal.org.objectweb.asm.*;
stefank@4298	26
stefank@4298	27	class Asmator {
stefank@4298	28	static byte[] fixup(byte[] buf) throws java.io.IOException {
stefank@4298	29	ClassReader cr = new ClassReader(buf);
stefank@4305	30	ClassWriter cw = new ClassWriter(0);
stefank@4305	31	ClassVisitor cv = new ClassVisitor(Opcodes.ASM4, cw) {
stefank@4298	32	public MethodVisitor visitMethod(
stefank@4298	33	final int access,
stefank@4298	34	final String name,
stefank@4298	35	final String desc,
stefank@4298	36	final String signature,
stefank@4298	37	final String[] exceptions)
stefank@4298	38	{
stefank@4298	39	MethodVisitor mv = super.visitMethod(access,
stefank@4298	40	name,
stefank@4298	41	desc,
stefank@4298	42	signature,
stefank@4298	43	exceptions);
stefank@4298	44	if (mv == null) return null;
stefank@4298	45	if (name.equals("callme")) {
stefank@4298	46	// make receiver go dead!
stefank@4298	47	mv.visitInsn(Opcodes.ACONST_NULL);
stefank@4298	48	mv.visitVarInsn(Opcodes.ASTORE, 0);
stefank@4298	49	}
stefank@4298	50	return mv;
stefank@4298	51	}
stefank@4298	52	};
stefank@4305	53	cr.accept(cv, 0);
stefank@4298	54	return cw.toByteArray();
stefank@4298	55	}
stefank@4298	56	}