Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/8000518/DuplicateConstantPoolEntry.java
test/tools/javac/8000518/DuplicateConstantPoolEntry.java
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| 1 /* | |
| 2 * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 */ | |
| 23 | |
| 24 /* | |
| 25 * @test | |
| 26 * @bug 8000518 | |
| 27 * @summary Javac generates duplicate name_and_type constant pool entry for | |
| 28 * class BinaryOpValueExp.java | |
| 29 * @run main DuplicateConstantPoolEntry | |
| 30 */ | |
| 31 | |
| 32 import com.sun.source.util.JavacTask; | |
| 33 import com.sun.tools.classfile.ClassFile; | |
| 34 import com.sun.tools.classfile.ConstantPoolException; | |
| 35 import java.io.File; | |
| 36 import java.io.IOException; | |
| 37 import java.net.URI; | |
| 38 import java.util.Arrays; | |
| 39 import java.util.List; | |
| 40 import javax.tools.JavaCompiler; | |
| 41 import javax.tools.JavaFileObject; | |
| 42 import javax.tools.SimpleJavaFileObject; | |
| 43 import javax.tools.ToolProvider; | |
| 44 | |
| 45 /* | |
| 46 * This bug was reproduced having two classes B and C referenced from a class A | |
| 47 * class C should be compiled and generated in advance. Later class A and B should | |
| 48 * be compiled like this: javac A.java B.java | |
| 49 */ | |
| 50 | |
| 51 public class DuplicateConstantPoolEntry { | |
| 52 | |
| 53 public static void main(String args[]) throws Exception { | |
| 54 new DuplicateConstantPoolEntry().run(); | |
| 55 } | |
| 56 | |
| 57 void run() throws Exception { | |
| 58 generateFilesNeeded(); | |
| 59 checkReference(); | |
| 60 } | |
| 61 | |
| 62 void generateFilesNeeded() throws Exception { | |
| 63 | |
| 64 StringJavaFileObject[] CSource = new StringJavaFileObject[] { | |
| 65 new StringJavaFileObject("C.java", | |
| 66 "class C {C(String s) {}}"), | |
| 67 }; | |
| 68 | |
| 69 List<StringJavaFileObject> AandBSource = Arrays.asList( | |
| 70 new StringJavaFileObject("A.java", | |
| 71 "class A {void test() {new B(null);new C(null);}}"), | |
| 72 new StringJavaFileObject("B.java", | |
| 73 "class B {B(String s) {}}") | |
| 74 ); | |
| 75 | |
| 76 final JavaCompiler tool = ToolProvider.getSystemJavaCompiler(); | |
| 77 JavacTask compileC = (JavacTask)tool.getTask(null, null, null, null, null, | |
| 78 Arrays.asList(CSource)); | |
| 79 if (!compileC.call()) { | |
| 80 throw new AssertionError("Compilation error while compiling C.java sources"); | |
| 81 } | |
| 82 JavacTask compileAB = (JavacTask)tool.getTask(null, null, null, | |
| 83 Arrays.asList("-cp", "."), null, AandBSource); | |
| 84 if (!compileAB.call()) { | |
| 85 throw new AssertionError("Compilation error while compiling A and B sources"); | |
| 86 } | |
| 87 } | |
| 88 | |
| 89 void checkReference() throws IOException, ConstantPoolException { | |
| 90 File file = new File("A.class"); | |
| 91 ClassFile classFile = ClassFile.read(file); | |
| 92 for (int i = 1; | |
| 93 i < classFile.constant_pool.size() - 1; | |
| 94 i += classFile.constant_pool.get(i).size()) { | |
| 95 for (int j = i + classFile.constant_pool.get(i).size(); | |
| 96 j < classFile.constant_pool.size(); | |
| 97 j += classFile.constant_pool.get(j).size()) { | |
| 98 if (classFile.constant_pool.get(i).toString(). | |
| 99 equals(classFile.constant_pool.get(j).toString())) { | |
| 100 throw new AssertionError( | |
| 101 "Duplicate entries in the constant pool at positions " + | |
| 102 i + " and " + j); | |
| 103 } | |
| 104 } | |
| 105 } | |
| 106 } | |
| 107 | |
| 108 private static class StringJavaFileObject extends SimpleJavaFileObject { | |
| 109 StringJavaFileObject(String name, String text) { | |
| 110 super(URI.create(name), JavaFileObject.Kind.SOURCE); | |
| 111 this.text = text; | |
| 112 } | |
| 113 @Override | |
| 114 public CharSequence getCharContent(boolean b) { | |
| 115 return text; | |
| 116 } | |
| 117 private String text; | |
| 118 } | |
| 119 } |
