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75 lines
2.7 KiB
Java
75 lines
2.7 KiB
Java
/*
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* Copyright (c) 2025, 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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import java.lang.invoke.MethodHandle;
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.MethodType;
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import java.lang.reflect.InvocationTargetException;
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import java.util.stream.Stream;
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.MethodSource;
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import static org.junit.jupiter.api.Assertions.*;
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/*
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* @test
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* @bug 8164714
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* @summary Null check for immediate enclosing instance for VM/reflective
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* invocation of inner classes
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*
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* @clean *
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* @compile OuterThisNullChecks.java
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* @run junit OuterThisNullChecks
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*
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* @clean *
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* @compile --release 17 -XDnullCheckOuterThis=true OuterThisNullChecks.java
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* @run junit OuterThisNullChecks
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*/
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class OuterThisNullChecks {
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static Stream<Class<?>> testClasses() {
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return Stream.of(NoOuterThis.class, OuterThisField.class);
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}
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@MethodSource("testClasses")
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@ParameterizedTest
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void testNoOuter(Class<?> clz) {
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var ite = assertThrows(InvocationTargetException.class, () -> clz.getDeclaredConstructor(OuterThisNullChecks.class).newInstance((Object) null));
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assertInstanceOf(NullPointerException.class, ite.getCause());
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MethodHandle mh = assertDoesNotThrow(() -> MethodHandles.lookup().findConstructor(clz, MethodType.methodType(void.class, OuterThisNullChecks.class)))
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.asType(MethodType.methodType(Object.class, Object.class));
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assertThrows(NullPointerException.class, () -> {
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Object stub = mh.invokeExact((Object) null);
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});
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}
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class NoOuterThis {}
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class OuterThisField {
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@Override
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public String toString() {
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return "outer this = " + OuterThisNullChecks.this;
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}
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}
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}
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