Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/defaultMethods/TestNoBridgeOnDefaults.java
test/tools/javac/defaultMethods/TestNoBridgeOnDefaults.java
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- 2eb010b6cb22
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| 1 /* | |
| 2 * Copyright (c) 2011, 2013, 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 7192246 | |
| 27 * @summary check that javac does not generate bridge methods for defaults | |
| 28 */ | |
| 29 | |
| 30 import com.sun.tools.classfile.ClassFile; | |
| 31 import com.sun.tools.classfile.ConstantPool.*; | |
| 32 import com.sun.tools.classfile.Method; | |
| 33 | |
| 34 import java.io.*; | |
| 35 | |
| 36 public class TestNoBridgeOnDefaults { | |
| 37 | |
| 38 interface A<X> { | |
| 39 default <Y> A<X> m(X x, Y y) { return Impl.<X,Y>m1(this, x, y); } | |
| 40 } | |
| 41 | |
| 42 static abstract class B<X> implements A<X> { } | |
| 43 | |
| 44 interface C<X> extends A<X> { | |
| 45 default <Y> C<X> m(X x, Y y) { return Impl.<X,Y>m2(this, x, y); } | |
| 46 } | |
| 47 | |
| 48 static abstract class D<X> extends B<X> implements C<X> { } | |
| 49 | |
| 50 static class Impl { | |
| 51 static <X, Y> A<X> m1(A<X> rec, X x, Y y) { return null; } | |
| 52 static <X, Y> C<X> m2(C<X> rec, X x, Y y) { return null; } | |
| 53 } | |
| 54 | |
| 55 static final String[] SUBTEST_NAMES = { B.class.getName() + ".class", D.class.getName() + ".class" }; | |
| 56 static final String TEST_METHOD_NAME = "m"; | |
| 57 | |
| 58 public static void main(String... args) throws Exception { | |
| 59 new TestNoBridgeOnDefaults().run(); | |
| 60 } | |
| 61 | |
| 62 public void run() throws Exception { | |
| 63 String workDir = System.getProperty("test.classes"); | |
| 64 for (int i = 0 ; i < SUBTEST_NAMES.length ; i ++) { | |
| 65 File compiledTest = new File(workDir, SUBTEST_NAMES[i]); | |
| 66 checkNoBridgeOnDefaults(compiledTest); | |
| 67 } | |
| 68 } | |
| 69 | |
| 70 void checkNoBridgeOnDefaults(File f) { | |
| 71 System.err.println("check: " + f); | |
| 72 try { | |
| 73 ClassFile cf = ClassFile.read(f); | |
| 74 for (Method m : cf.methods) { | |
| 75 String mname = m.getName(cf.constant_pool); | |
| 76 if (mname.equals(TEST_METHOD_NAME)) { | |
| 77 throw new Error("unexpected bridge method found " + m); | |
| 78 } | |
| 79 } | |
| 80 } catch (Exception e) { | |
| 81 e.printStackTrace(); | |
| 82 throw new Error("error reading " + f +": " + e); | |
| 83 } | |
| 84 } | |
| 85 } |
