author | amurillo |
Mon, 11 Apr 2016 20:38:38 -0700 (2016-04-12) | |
changeset 37298 | 8df0cc9da41e |
parent 30846 | 2b3f379840f0 |
permissions | -rw-r--r-- |
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/* |
30730
d3ce7619db2c
8076543: Add @modules as needed to the langtools tests
akulyakh
parents:
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diff
changeset
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* Copyright (c) 2014, 2015, 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 8015927 |
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* @summary Class reference duplicates in constant pool |
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* @modules jdk.jdeps/com.sun.tools.classfile |
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* @clean ClassRefDupInConstantPoolTest$Duplicates.class |
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* @run main ClassRefDupInConstantPoolTest |
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*/ |
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import java.util.TreeSet; |
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import com.sun.tools.classfile.*; |
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import com.sun.tools.classfile.ConstantPool.*; |
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public class ClassRefDupInConstantPoolTest { |
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public static void main(String[] args) throws Exception { |
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ClassFile cls = ClassFile.read(ClassRefDupInConstantPoolTest.class. |
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getResourceAsStream("ClassRefDupInConstantPoolTest$Duplicates.class")); |
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ConstantPool pool = cls.constant_pool; |
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int duplicates = 0; |
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TreeSet<Integer> set = new TreeSet<>(); |
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for (CPInfo i : pool.entries()) { |
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if (i.getTag() == ConstantPool.CONSTANT_Class) { |
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CONSTANT_Class_info ci = (CONSTANT_Class_info)i; |
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if (!set.add(ci.name_index)) { |
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duplicates++; |
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System.out.println("DUPLICATE CLASS REF " + ci.getName()); |
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} |
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} |
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} |
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if (duplicates > 0) |
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throw new Exception("Test Failed"); |
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} |
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class Duplicates { |
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String concat(String s1, String s2) { |
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return s1 + (s2 == s1 ? " " : s2); |
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} |
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} |
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} |