jdk8-mips64-public/langtools: test/tools/javac/T5053846/MethodRefDupInConstantPoolTest.java@0b6cc4ea670f (annotated)

test/tools/javac/T5053846/MethodRefDupInConstantPoolTest.java@0b6cc4ea670f (annotated)

test/tools/javac/T5053846/MethodRefDupInConstantPoolTest.java

Wed, 13 Aug 2014 14:50:00 -0700

author: katleman
date: Wed, 13 Aug 2014 14:50:00 -0700
changeset 2549: 0b6cc4ea670f
parent 1687: a4be2c2fe0a1
child 2525: 2eb010b6cb22
permissions: -rw-r--r--

Added tag jdk8u40-b01 for changeset bf89a471779d

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

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/T5053846/MethodRefDupInConstantPoolTest.java@0b6cc4ea670f (annotated)

test/tools/javac/T5053846/MethodRefDupInConstantPoolTest.java