108 lines
3.3 KiB
Java
108 lines
3.3 KiB
Java
/*
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* Copyright (c) 2015, 2022, 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 8046977 8065303
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* @summary ClassCastException: typing information needed for method reference bridging not preserved
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* @author Srikanth
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* @run main MethodReferenceGenericTarget
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*/
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public class MethodReferenceGenericTarget {
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static String result = "";
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interface ISi { int m(Short a); }
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public static void main(String[] args) {
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(new MethodReferenceGenericTarget()).testUnboxObjectToNumberWiden();
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if (!result.equals("7775"))
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throw new AssertionError("Incorrect result");
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MethodReferenceTestPrivateTypeConversion.main(null);
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new InferenceHookTest().test();
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}
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void foo(ISi q) {
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result += q.m((short)75);
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}
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public void testUnboxObjectToNumberWiden() {
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ISi q = (new E<Short>())::xI;
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result += q.m((short)77);
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// Verify poly invocation context to confirm we handle
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// deferred/speculative attribution paths adequately.
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foo((new E<Short>())::xI);
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}
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class E<T> {
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private T xI(T t) { return t; }
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}
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}
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// snippet from https://bugs.openjdk.org/browse/JDK-8065303
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class MethodReferenceTestPrivateTypeConversion {
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class MethodReferenceTestTypeConversion_E<T> {
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private T xI(T t) { return t; }
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}
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interface ISi { int m(Short a); }
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interface ICc { char m(Character a); }
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public void testUnboxObjectToNumberWiden() {
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ISi q = (new MethodReferenceTestTypeConversion_E<Short>())::xI;
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if ((q.m((short)77) != (short)77))
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throw new AssertionError("Incorrect result");
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}
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public void testUnboxObjectToChar() {
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ICc q = (new MethodReferenceTestTypeConversion_E<Character>())::xI;
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if (q.m('@') != '@')
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throw new AssertionError("Incorrect result");
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}
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public static void main(String[] args) {
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new MethodReferenceTestPrivateTypeConversion().testUnboxObjectToNumberWiden();
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new MethodReferenceTestPrivateTypeConversion().testUnboxObjectToChar();
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}
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}
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class InferenceHookTestBase {
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<X> X m(Integer i) { return null; }
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}
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class InferenceHookTest extends InferenceHookTestBase {
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interface SAM1<R> {
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R m(Integer i);
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}
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<Z> Z g(SAM1<Z> o) { return null; }
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void test() {
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String s = g(super::m);
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if (s != null)
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throw new AssertionError("Incorrect result");
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}
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}
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