110 lines
3.5 KiB
Java
110 lines
3.5 KiB
Java
/*
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* Copyright (c) 2015, 2016, 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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/* @test
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* @bug 8139885
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* @run testng/othervm -ea -esa test.java.lang.invoke.FindAccessTest
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*/
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package test.java.lang.invoke;
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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.MethodHandles.Lookup;
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import java.lang.invoke.MethodType;
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import static org.testng.AssertJUnit.*;
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import org.testng.annotations.*;
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/**
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* Tests for Lookup.findClass/accessClass extensions added in JEP 274.
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*/
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public class FindAccessTest {
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static final Lookup LOOKUP = MethodHandles.lookup();
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@Test
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public static void testFindSpecial() throws Throwable {
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FindSpecial.C c = new FindSpecial.C();
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assertEquals("I1.m", c.m());
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MethodType t = MethodType.methodType(String.class);
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MethodHandle ci1m = LOOKUP.findSpecial(FindSpecial.I1.class, "m", t, FindSpecial.C.class);
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assertEquals("I1.m", (String) ci1m.invoke(c));
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}
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@Test
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public static void testFindSpecialAbstract() throws Throwable {
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FindSpecial.C c = new FindSpecial.C();
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assertEquals("q", c.q());
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MethodType t = MethodType.methodType(String.class);
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boolean caught = false;
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try {
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MethodHandle ci3q = LOOKUP.findSpecial(FindSpecial.I3.class, "q", t, FindSpecial.C.class);
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} catch (Throwable thrown) {
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if (!(thrown instanceof IllegalAccessException) || !FindSpecial.ABSTRACT_ERROR.equals(thrown.getMessage())) {
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throw new AssertionError(thrown.getMessage(), thrown);
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}
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caught = true;
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}
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assertTrue(caught);
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}
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@Test(expectedExceptions = {ClassNotFoundException.class})
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public static void testFindClassCNFE() throws ClassNotFoundException, IllegalAccessException {
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LOOKUP.findClass("does.not.Exist");
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}
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static class FindSpecial {
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interface I1 {
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default String m() {
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return "I1.m";
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}
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}
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interface I2 {
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default String m() {
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return "I2.m";
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}
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}
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interface I3 {
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String q();
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}
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static class C implements I1, I2, I3 {
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public String m() {
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return I1.super.m();
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}
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public String q() {
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return "q";
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}
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}
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static final String ABSTRACT_ERROR = "no such method: test.java.lang.invoke.FindAccessTest$FindSpecial$I3.q()String/invokeSpecial";
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}
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}
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