86 lines
2.9 KiB
Java
86 lines
2.9 KiB
Java
/*
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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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* @enablePreview
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* @modules java.base/jdk.internal.classfile.impl
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*/
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import java.lang.classfile.*;
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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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ClassModel cf = ClassFile.of().parse(f.toPath());
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for (MethodModel m : cf.methods()) {
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String mname = m.methodName().stringValue();
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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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}
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