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test/tools/javac/defaultMethods/TestNoBridgeOnDefaults.java@959103a6100f (annotated)

test/tools/javac/defaultMethods/TestNoBridgeOnDefaults.java

Wed, 27 Apr 2016 01:34:52 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:34:52 +0800

changeset 0

959103a6100f

child 2525

2eb010b6cb22

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	/*
aoqi@0	25	* @test
aoqi@0	26	* @bug 7192246
aoqi@0	27	* @summary check that javac does not generate bridge methods for defaults
aoqi@0	28	*/
aoqi@0	29
aoqi@0	30	import com.sun.tools.classfile.ClassFile;
aoqi@0	31	import com.sun.tools.classfile.ConstantPool.*;
aoqi@0	32	import com.sun.tools.classfile.Method;
aoqi@0	33
aoqi@0	34	import java.io.*;
aoqi@0	35
aoqi@0	36	public class TestNoBridgeOnDefaults {
aoqi@0	37
aoqi@0	38	interface A<X> {
aoqi@0	39	default <Y> A<X> m(X x, Y y) { return Impl.<X,Y>m1(this, x, y); }
aoqi@0	40	}
aoqi@0	41
aoqi@0	42	static abstract class B<X> implements A<X> { }
aoqi@0	43
aoqi@0	44	interface C<X> extends A<X> {
aoqi@0	45	default <Y> C<X> m(X x, Y y) { return Impl.<X,Y>m2(this, x, y); }
aoqi@0	46	}
aoqi@0	47
aoqi@0	48	static abstract class D<X> extends B<X> implements C<X> { }
aoqi@0	49
aoqi@0	50	static class Impl {
aoqi@0	51	static <X, Y> A<X> m1(A<X> rec, X x, Y y) { return null; }
aoqi@0	52	static <X, Y> C<X> m2(C<X> rec, X x, Y y) { return null; }
aoqi@0	53	}
aoqi@0	54
aoqi@0	55	static final String[] SUBTEST_NAMES = { B.class.getName() + ".class", D.class.getName() + ".class" };
aoqi@0	56	static final String TEST_METHOD_NAME = "m";
aoqi@0	57
aoqi@0	58	public static void main(String... args) throws Exception {
aoqi@0	59	new TestNoBridgeOnDefaults().run();
aoqi@0	60	}
aoqi@0	61
aoqi@0	62	public void run() throws Exception {
aoqi@0	63	String workDir = System.getProperty("test.classes");
aoqi@0	64	for (int i = 0 ; i < SUBTEST_NAMES.length ; i ++) {
aoqi@0	65	File compiledTest = new File(workDir, SUBTEST_NAMES[i]);
aoqi@0	66	checkNoBridgeOnDefaults(compiledTest);
aoqi@0	67	}
aoqi@0	68	}
aoqi@0	69
aoqi@0	70	void checkNoBridgeOnDefaults(File f) {
aoqi@0	71	System.err.println("check: " + f);
aoqi@0	72	try {
aoqi@0	73	ClassFile cf = ClassFile.read(f);
aoqi@0	74	for (Method m : cf.methods) {
aoqi@0	75	String mname = m.getName(cf.constant_pool);
aoqi@0	76	if (mname.equals(TEST_METHOD_NAME)) {
aoqi@0	77	throw new Error("unexpected bridge method found " + m);
aoqi@0	78	}
aoqi@0	79	}
aoqi@0	80	} catch (Exception e) {
aoqi@0	81	e.printStackTrace();
aoqi@0	82	throw new Error("error reading " + f +": " + e);
aoqi@0	83	}
aoqi@0	84	}
aoqi@0	85	}