aoqi@0: /*
aoqi@0:  * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test
aoqi@0:  * @bug 7192246
aoqi@0:  * @summary  check that javac does not generate bridge methods for defaults
aoqi@0:  */
aoqi@0: 
aoqi@0: import com.sun.tools.classfile.ClassFile;
aoqi@0: import com.sun.tools.classfile.ConstantPool.*;
aoqi@0: import com.sun.tools.classfile.Method;
aoqi@0: 
aoqi@0: import java.io.*;
aoqi@0: 
aoqi@0: public class TestNoBridgeOnDefaults {
aoqi@0: 
aoqi@0:     interface A<X> {
aoqi@0:         default <Y> A<X> m(X x, Y y) { return Impl.<X,Y>m1(this, x, y); }
aoqi@0:     }
aoqi@0: 
aoqi@0:     static abstract class B<X> implements A<X> { }
aoqi@0: 
aoqi@0:     interface C<X> extends A<X> {
aoqi@0:         default <Y> C<X> m(X x, Y y) { return Impl.<X,Y>m2(this, x, y); }
aoqi@0:     }
aoqi@0: 
aoqi@0:     static abstract class D<X> extends B<X> implements C<X> { }
aoqi@0: 
aoqi@0:     static class Impl {
aoqi@0:        static <X, Y> A<X> m1(A<X> rec, X x, Y y) { return null; }
aoqi@0:        static <X, Y> C<X> m2(C<X> rec, X x, Y y) { return null; }
aoqi@0:     }
aoqi@0: 
aoqi@0:     static final String[] SUBTEST_NAMES = { B.class.getName() + ".class", D.class.getName() + ".class" };
aoqi@0:     static final String TEST_METHOD_NAME = "m";
aoqi@0: 
aoqi@0:     public static void main(String... args) throws Exception {
aoqi@0:         new TestNoBridgeOnDefaults().run();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void run() throws Exception {
aoqi@0:         String workDir = System.getProperty("test.classes");
aoqi@0:         for (int i = 0 ; i < SUBTEST_NAMES.length ; i ++) {
aoqi@0:             File compiledTest = new File(workDir, SUBTEST_NAMES[i]);
aoqi@0:             checkNoBridgeOnDefaults(compiledTest);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     void checkNoBridgeOnDefaults(File f) {
aoqi@0:         System.err.println("check: " + f);
aoqi@0:         try {
aoqi@0:             ClassFile cf = ClassFile.read(f);
aoqi@0:             for (Method m : cf.methods) {
aoqi@0:                 String mname = m.getName(cf.constant_pool);
aoqi@0:                 if (mname.equals(TEST_METHOD_NAME)) {
aoqi@0:                     throw new Error("unexpected bridge method found " + m);
aoqi@0:                 }
aoqi@0:             }
aoqi@0:         } catch (Exception e) {
aoqi@0:             e.printStackTrace();
aoqi@0:             throw new Error("error reading " + f +": " + e);
aoqi@0:         }
aoqi@0:     }
aoqi@0: }