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Quelle T8191893.javaSprache: JAVA |
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/* * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @bug 8191802 8191893 * @summary Upward projection result is A<? extends Number> instead of A<? super Integer> * @compile T8191893.java */ class T8191893 { static class A<E> { } <T> A<? super T> m(T t) { return null; } <U> A<? super A<? super U>> m2(A<? super U> u) { return null; } void test() { var varValue = m2(m(10)); A<? super A<Object>> expectedTypeValue = varValue; } }
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2026-06-09