vromero@1640: /*
vromero@1640:  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
vromero@1640:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
vromero@1640:  *
vromero@1640:  * This code is free software; you can redistribute it and/or modify it
vromero@1640:  * under the terms of the GNU General Public License version 2 only, as
vromero@1640:  * published by the Free Software Foundation.
vromero@1640:  *
vromero@1640:  * This code is distributed in the hope that it will be useful, but WITHOUT
vromero@1640:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
vromero@1640:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
vromero@1640:  * version 2 for more details (a copy is included in the LICENSE file that
vromero@1640:  * accompanied this code).
vromero@1640:  *
vromero@1640:  * You should have received a copy of the GNU General Public License version
vromero@1640:  * 2 along with this work; if not, write to the Free Software Foundation,
vromero@1640:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
vromero@1640:  *
vromero@1640:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
vromero@1640:  * or visit www.oracle.com if you need additional information or have any
vromero@1640:  * questions.
vromero@1640:  */
vromero@1640: 
vromero@1640: /*
vromero@1640:  * @test
vromero@1687:  * @bug 5053846 8011432
vromero@1640:  * @summary javac: MethodRef entries are duplicated in the constant pool
vromero@1687:  * @summary javac, compiler regression iterable + captured type
vromero@1640:  */
vromero@1640: 
vromero@1640: import java.io.PrintWriter;
vromero@1640: import java.io.StringWriter;
vromero@1640: import java.nio.file.Paths;
vromero@1640: import java.util.*;
vromero@1640: 
vromero@1640: public class MethodRefDupInConstantPoolTest {
vromero@1640: 
vromero@1640:     private static final String methodToLookFor =
vromero@1640:             "java/util/Vector.iterator:()Ljava/util/Iterator;";
vromero@1640: 
vromero@1640:     public static void main(String[] args) {
vromero@1640:         new MethodRefDupInConstantPoolTest().run();
vromero@1640:     }
vromero@1640: 
vromero@1640:     void run() {
vromero@1640:         check("-v", Paths.get(System.getProperty("test.classes"),
vromero@1687:                 this.getClass().getSimpleName() + "$TestHelper1.class").toString());
vromero@1640:         check("-v", Paths.get(System.getProperty("test.classes"),
vromero@1687:                 this.getClass().getSimpleName() + "$TestHelper2.class").toString());
vromero@1687:         check("-v", Paths.get(System.getProperty("test.classes"),
vromero@1687:                 this.getClass().getSimpleName() + "$TestHelper3.class").toString());
vromero@1687:         check("-v", Paths.get(System.getProperty("test.classes"),
vromero@1687:                 this.getClass().getSimpleName() + "$TestHelper4.class").toString());
vromero@1640:     }
vromero@1640: 
vromero@1640:     void check(String... params) {
vromero@1640:         StringWriter s;
vromero@1640:         String out;
vromero@1640:         try (PrintWriter pw = new PrintWriter(s = new StringWriter())) {
vromero@1640:             com.sun.tools.javap.Main.run(params, pw);
vromero@1640:             out = s.toString();
vromero@1640:         }
vromero@1640:         String constantPool = getConstantPool(out);
vromero@1640:         if (constantPool.indexOf(methodToLookFor) !=
vromero@1640:                 constantPool.lastIndexOf(methodToLookFor)) {
vromero@1640:             throw new AssertionError("There is more than one entry for the method seek "  +
vromero@1640:                     methodToLookFor);
vromero@1640:         }
vromero@1640:     }
vromero@1640: 
vromero@1640:     String getConstantPool(String out) {
vromero@1640:         int start = out.indexOf("Constant pool:");
vromero@1640:         int end = out.indexOf("{");
vromero@1640:         return out.substring(start, end);
vromero@1640:     }
vromero@1640: 
vromero@1687:     class TestHelper1 {
vromero@1687:         void m() {
vromero@1687:             Vector v = new Vector();
vromero@1687:             Iterator iter = v.iterator();
vromero@1687:             while (iter.hasNext()) {
vromero@1687:                 Object o = iter.next();
vromero@1687:                 Object o2 = o;
vromero@1687:             }
vromero@1687:             for (Object o: v) {
vromero@1687:                 Object o2 = o;
vromero@1687:             }
vromero@1640:         }
vromero@1640:     }
vromero@1640: 
vromero@1687:     class TestHelper2<X extends Number & Iterable<String>> {
vromero@1687:         void test(X x) {
vromero@1687:             for (String s : x) { }
vromero@1687:         }
vromero@1687:     }
vromero@1687: 
vromero@1687:     interface Data extends Iterable<String> {}
vromero@1687: 
vromero@1687:     class TestHelper3<X extends Number & Iterable<? extends Data>> {
vromero@1687:         void test(X x) {
vromero@1687:             for (Data s : x) { }
vromero@1687:         }
vromero@1687:     }
vromero@1687: 
vromero@1687:     class TestHelper4 {
vromero@1687:          void test(Iterable<? extends Data> t) {
vromero@1687:              for(Object a: t.iterator().next());
vromero@1687:          }
vromero@1640:     }
vromero@1640: }