russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
68 lines
2.5 KiB
Java
68 lines
2.5 KiB
Java
/*
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* Copyright (c) 2019, 2026, 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 8173975
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* @summary Lookup::in throws IAE if the target class is a primitive class or array class
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* @run junit/othervm LookupClassTest
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*/
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.MethodHandles.Lookup;
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import static org.junit.jupiter.api.Assertions.*;
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import org.junit.jupiter.api.BeforeAll;
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import org.junit.jupiter.api.Test;
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public class LookupClassTest {
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private static final LookupClassTest[] ARRAY = new LookupClassTest[0];
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@BeforeAll
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public static void test() {
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assertTrue(ARRAY.getClass().isArray());
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assertSamePackage(MethodHandles.lookup(), ARRAY.getClass());
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assertSamePackage(MethodHandles.publicLookup(), int.class);
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}
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private static void assertSamePackage(Lookup lookup, Class<?> targetClass) {
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assertEquals(targetClass.getPackageName(), lookup.lookupClass().getPackageName());
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}
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@Test
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public void arrayLookupClass() {
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Lookup lookup = MethodHandles.lookup();
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assertThrows(IllegalArgumentException.class, () -> lookup.in(ARRAY.getClass()));
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}
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@Test
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public void primitiveLookupClass() {
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Lookup lookup = MethodHandles.publicLookup();
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assertThrows(IllegalArgumentException.class, () -> lookup.in(int.class));
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}
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@Test
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public void voidLookupClass() {
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Lookup lookup = MethodHandles.publicLookup();
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assertThrows(IllegalArgumentException.class, () -> lookup.in(void.class));
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}
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}
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