Fri, 24 Apr 2020 03:58:51 +0100
Merge
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | */ |
aoqi@0 | 23 | |
aoqi@0 | 24 | /* |
aoqi@0 | 25 | * @test |
aoqi@0 | 26 | * @bug 8000518 |
aoqi@0 | 27 | * @summary Javac generates duplicate name_and_type constant pool entry for |
aoqi@0 | 28 | * class BinaryOpValueExp.java |
aoqi@0 | 29 | * @run main DuplicateConstantPoolEntry |
aoqi@0 | 30 | */ |
aoqi@0 | 31 | |
aoqi@0 | 32 | import com.sun.source.util.JavacTask; |
aoqi@0 | 33 | import com.sun.tools.classfile.ClassFile; |
aoqi@0 | 34 | import com.sun.tools.classfile.ConstantPoolException; |
aoqi@0 | 35 | import java.io.File; |
aoqi@0 | 36 | import java.io.IOException; |
aoqi@0 | 37 | import java.net.URI; |
aoqi@0 | 38 | import java.util.Arrays; |
aoqi@0 | 39 | import java.util.List; |
aoqi@0 | 40 | import javax.tools.JavaCompiler; |
aoqi@0 | 41 | import javax.tools.JavaFileObject; |
aoqi@0 | 42 | import javax.tools.SimpleJavaFileObject; |
aoqi@0 | 43 | import javax.tools.ToolProvider; |
aoqi@0 | 44 | |
aoqi@0 | 45 | /* |
aoqi@0 | 46 | * This bug was reproduced having two classes B and C referenced from a class A |
aoqi@0 | 47 | * class C should be compiled and generated in advance. Later class A and B should |
aoqi@0 | 48 | * be compiled like this: javac A.java B.java |
aoqi@0 | 49 | */ |
aoqi@0 | 50 | |
aoqi@0 | 51 | public class DuplicateConstantPoolEntry { |
aoqi@0 | 52 | |
aoqi@0 | 53 | public static void main(String args[]) throws Exception { |
aoqi@0 | 54 | new DuplicateConstantPoolEntry().run(); |
aoqi@0 | 55 | } |
aoqi@0 | 56 | |
aoqi@0 | 57 | void run() throws Exception { |
aoqi@0 | 58 | generateFilesNeeded(); |
aoqi@0 | 59 | checkReference(); |
aoqi@0 | 60 | } |
aoqi@0 | 61 | |
aoqi@0 | 62 | void generateFilesNeeded() throws Exception { |
aoqi@0 | 63 | |
aoqi@0 | 64 | StringJavaFileObject[] CSource = new StringJavaFileObject[] { |
aoqi@0 | 65 | new StringJavaFileObject("C.java", |
aoqi@0 | 66 | "class C {C(String s) {}}"), |
aoqi@0 | 67 | }; |
aoqi@0 | 68 | |
aoqi@0 | 69 | List<StringJavaFileObject> AandBSource = Arrays.asList( |
aoqi@0 | 70 | new StringJavaFileObject("A.java", |
aoqi@0 | 71 | "class A {void test() {new B(null);new C(null);}}"), |
aoqi@0 | 72 | new StringJavaFileObject("B.java", |
aoqi@0 | 73 | "class B {B(String s) {}}") |
aoqi@0 | 74 | ); |
aoqi@0 | 75 | |
aoqi@0 | 76 | final JavaCompiler tool = ToolProvider.getSystemJavaCompiler(); |
aoqi@0 | 77 | JavacTask compileC = (JavacTask)tool.getTask(null, null, null, null, null, |
aoqi@0 | 78 | Arrays.asList(CSource)); |
aoqi@0 | 79 | if (!compileC.call()) { |
aoqi@0 | 80 | throw new AssertionError("Compilation error while compiling C.java sources"); |
aoqi@0 | 81 | } |
aoqi@0 | 82 | JavacTask compileAB = (JavacTask)tool.getTask(null, null, null, |
aoqi@0 | 83 | Arrays.asList("-cp", "."), null, AandBSource); |
aoqi@0 | 84 | if (!compileAB.call()) { |
aoqi@0 | 85 | throw new AssertionError("Compilation error while compiling A and B sources"); |
aoqi@0 | 86 | } |
aoqi@0 | 87 | } |
aoqi@0 | 88 | |
aoqi@0 | 89 | void checkReference() throws IOException, ConstantPoolException { |
aoqi@0 | 90 | File file = new File("A.class"); |
aoqi@0 | 91 | ClassFile classFile = ClassFile.read(file); |
aoqi@0 | 92 | for (int i = 1; |
aoqi@0 | 93 | i < classFile.constant_pool.size() - 1; |
aoqi@0 | 94 | i += classFile.constant_pool.get(i).size()) { |
aoqi@0 | 95 | for (int j = i + classFile.constant_pool.get(i).size(); |
aoqi@0 | 96 | j < classFile.constant_pool.size(); |
aoqi@0 | 97 | j += classFile.constant_pool.get(j).size()) { |
aoqi@0 | 98 | if (classFile.constant_pool.get(i).toString(). |
aoqi@0 | 99 | equals(classFile.constant_pool.get(j).toString())) { |
aoqi@0 | 100 | throw new AssertionError( |
aoqi@0 | 101 | "Duplicate entries in the constant pool at positions " + |
aoqi@0 | 102 | i + " and " + j); |
aoqi@0 | 103 | } |
aoqi@0 | 104 | } |
aoqi@0 | 105 | } |
aoqi@0 | 106 | } |
aoqi@0 | 107 | |
aoqi@0 | 108 | private static class StringJavaFileObject extends SimpleJavaFileObject { |
aoqi@0 | 109 | StringJavaFileObject(String name, String text) { |
aoqi@0 | 110 | super(URI.create(name), JavaFileObject.Kind.SOURCE); |
aoqi@0 | 111 | this.text = text; |
aoqi@0 | 112 | } |
aoqi@0 | 113 | @Override |
aoqi@0 | 114 | public CharSequence getCharContent(boolean b) { |
aoqi@0 | 115 | return text; |
aoqi@0 | 116 | } |
aoqi@0 | 117 | private String text; |
aoqi@0 | 118 | } |
aoqi@0 | 119 | } |