| /* |
| * 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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, |
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| * |
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| */ |
| |
| /* |
| * @test |
| * @bug 8191802 |
| * @summary Upward projection result is A<? extends Number> instead of A<? super Integer> |
| * @modules jdk.compiler/com.sun.source.tree |
| * jdk.compiler/com.sun.source.util |
| * jdk.compiler/com.sun.tools.javac.api |
| * jdk.compiler/com.sun.tools.javac.code |
| * jdk.compiler/com.sun.tools.javac.util |
| * @build LocalVariableInferenceTester |
| * @run main LocalVariableInferenceTester UpperBounds.java |
| */ |
| class UpperBounds { |
| |
| static class A<T extends Number> { } |
| |
| static class C<T extends Comparable<T>> { } |
| |
| void test1(A<? super Integer> s) { |
| //U is not Object, Bi is not fbound and U is not more specific than Bi, use "? super L" |
| @InferredType("UpperBounds.A<? super java.lang.Integer>") |
| var x = s; |
| } |
| |
| void test2(C<? super Integer> s) { |
| //U is not Object, Bi is fbound, use "? extends L" |
| @InferredType("UpperBounds.C<? extends java.lang.Comparable<?>>") |
| var x = s; |
| } |
| |
| void test3(A<? extends Object> s) { |
| //U is not Object, Bi is not fbound and U is not more specific than Bi, L is undefined, use "?" |
| @InferredType("UpperBounds.A<?>") |
| var x = s; |
| } |
| |
| void test4(A<? extends Integer> s) { |
| //U is not Object, Bi is not fbound and U is more specific than Bi, use "? extends U" |
| @InferredType("UpperBounds.A<? extends java.lang.Integer>") |
| var x = s; |
| } |
| |
| void test5(A<? extends Object> s) { |
| //U is not Object, Bi is not fbound and U is not more specific than Bi, L is undefined, use "?" |
| @InferredType("UpperBounds.A<?>") |
| var x = s; |
| } |
| } |