author | mchung |
Wed, 27 May 2015 13:25:18 -0700 | |
changeset 30846 | 2b3f379840f0 |
parent 30730 | d3ce7619db2c |
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/* |
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* Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* |
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* @test |
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* @bug 7192246 |
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* @summary check that javac does not generate bridge methods for defaults |
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* @modules jdk.jdeps/com.sun.tools.classfile |
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*/ |
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import com.sun.tools.classfile.ClassFile; |
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import com.sun.tools.classfile.ConstantPool.*; |
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import com.sun.tools.classfile.Method; |
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import java.io.*; |
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public class TestNoBridgeOnDefaults { |
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interface A<X> { |
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default <Y> A<X> m(X x, Y y) { return Impl.<X,Y>m1(this, x, y); } |
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} |
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static abstract class B<X> implements A<X> { } |
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interface C<X> extends A<X> { |
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default <Y> C<X> m(X x, Y y) { return Impl.<X,Y>m2(this, x, y); } |
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} |
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static abstract class D<X> extends B<X> implements C<X> { } |
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static class Impl { |
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static <X, Y> A<X> m1(A<X> rec, X x, Y y) { return null; } |
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static <X, Y> C<X> m2(C<X> rec, X x, Y y) { return null; } |
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} |
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static final String[] SUBTEST_NAMES = { B.class.getName() + ".class", D.class.getName() + ".class" }; |
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static final String TEST_METHOD_NAME = "m"; |
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public static void main(String... args) throws Exception { |
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new TestNoBridgeOnDefaults().run(); |
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} |
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public void run() throws Exception { |
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String workDir = System.getProperty("test.classes"); |
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for (int i = 0 ; i < SUBTEST_NAMES.length ; i ++) { |
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File compiledTest = new File(workDir, SUBTEST_NAMES[i]); |
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checkNoBridgeOnDefaults(compiledTest); |
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} |
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} |
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void checkNoBridgeOnDefaults(File f) { |
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System.err.println("check: " + f); |
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try { |
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ClassFile cf = ClassFile.read(f); |
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for (Method m : cf.methods) { |
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String mname = m.getName(cf.constant_pool); |
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if (mname.equals(TEST_METHOD_NAME)) { |
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throw new Error("unexpected bridge method found " + m); |
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} |
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} |
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} catch (Exception e) { |
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e.printStackTrace(); |
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throw new Error("error reading " + f +": " + e); |
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} |
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} |
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} |