MethodHandleAccessProviderTest.java revision 12748:fbb9c8026495 
1/*
2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 * @test
26 * @bug 8152343
27 * @bug 8161068
28 * @requires vm.jvmci
29 * @library /test/lib /compiler/jvmci/jdk.vm.ci.hotspot.test/src
30 * @modules java.base/java.lang.invoke:+open
31 * @modules jdk.internal.vm.ci/jdk.vm.ci.meta
32 *          jdk.internal.vm.ci/jdk.vm.ci.runtime
33 * @modules jdk.internal.vm.ci/jdk.vm.ci.hotspot:+open
34 * @run testng/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
35 *      -Djvmci.Compiler=null jdk.vm.ci.hotspot.test.MethodHandleAccessProviderTest
36 */
37
38package jdk.vm.ci.hotspot.test;
39
40import jdk.vm.ci.hotspot.HotSpotConstantReflectionProvider;
41import jdk.vm.ci.meta.JavaConstant;
42import jdk.vm.ci.meta.MetaAccessProvider;
43import jdk.vm.ci.meta.MethodHandleAccessProvider;
44import jdk.vm.ci.meta.MethodHandleAccessProvider.IntrinsicMethod;
45import jdk.vm.ci.meta.ResolvedJavaMethod;
46import jdk.vm.ci.runtime.JVMCI;
47import org.testng.Assert;
48import org.testng.annotations.Test;
49
50import java.lang.invoke.MethodHandle;
51import java.lang.invoke.MethodHandles;
52import java.lang.reflect.Method;
53
54public class MethodHandleAccessProviderTest {
55    private static final HotSpotConstantReflectionProvider CONSTANT_REFLECTION = (HotSpotConstantReflectionProvider) JVMCI.getRuntime().getHostJVMCIBackend().getConstantReflection();
56    private static final MethodHandleAccessProvider PROVIDER = CONSTANT_REFLECTION.getMethodHandleAccess();
57    private static final MetaAccessProvider META_ACCESS = JVMCI.getRuntime().getHostJVMCIBackend().getMetaAccess();
58
59    @Test(dataProvider = "intrinsicsPositive", dataProviderClass = MethodHandleAccessProviderData.class)
60    public void testLookupMethodHandleIntrinsic(ResolvedJavaMethod mtd, IntrinsicMethod expected) {
61        Assert.assertEquals(expected, PROVIDER.lookupMethodHandleIntrinsic(mtd), "Unexpected intrinsic returned for " + mtd);
62    }
63
64    @Test(dataProvider = "intrinsicsNegative", dataProviderClass = MethodHandleAccessProviderData.class)
65    public void testLookupMethodHandleIntrinsicNegative(ResolvedJavaMethod mtd) {
66        Assert.assertNull(PROVIDER.lookupMethodHandleIntrinsic(mtd), "Expected null return for " + mtd);
67    }
68
69    @Test(expectedExceptions = {NullPointerException.class})
70    public void testLookupMethodHandleIntrinsicNull() {
71        PROVIDER.lookupMethodHandleIntrinsic(null);
72    }
73
74    @Test(dataProvider = "invokeBasicPositive", dataProviderClass = MethodHandleAccessProviderData.class)
75    public void testResolveInvokeBasicTarget(JavaConstant javaConstantMethodHandle, boolean force, String expected) {
76        ResolvedJavaMethod mtd = PROVIDER.resolveInvokeBasicTarget(javaConstantMethodHandle, force);
77        Assert.assertTrue(mtd.getName().startsWith(expected), "Unexpected method resolved: " + mtd);
78    }
79
80    @Test(dataProvider = "invokeBasicNegative1", dataProviderClass = MethodHandleAccessProviderData.class)
81    public void testResolveInvokeBasicTargetNegative1(JavaConstant javaConstantMethodHandle, boolean force) {
82        Assert.assertNull(PROVIDER.resolveInvokeBasicTarget(javaConstantMethodHandle, force),
83                        "Expected null return for " + javaConstantMethodHandle + " with force=" + force);
84    }
85
86    @Test(dataProvider = "invokeBasicNegative2", dataProviderClass = MethodHandleAccessProviderData.class, expectedExceptions = {NullPointerException.class})
87    public void testResolveInvokeBasicTargetNegative2(JavaConstant javaConstantMethodHandle, boolean force) {
88        PROVIDER.resolveInvokeBasicTarget(javaConstantMethodHandle, force);
89    }
90
91    @Test
92    public void testResolveLinkToTarget() {
93        Method self;
94        try {
95            self = getClass().getDeclaredMethod("testResolveLinkToTarget");
96        } catch (NoSuchMethodException e) {
97            throw new Error("TESTBUG: can't find method: " + e, e);
98        }
99        MethodHandle mh;
100        try {
101            mh = MethodHandles.lookup().unreflect(self);
102        } catch (IllegalAccessException e) {
103            throw new Error("TESTBUG: can't get MHandle: " + e, e);
104        }
105        Method internalMemberNameMethod;
106        try {
107            internalMemberNameMethod = mh.getClass().getDeclaredMethod("internalMemberName");
108        } catch (NoSuchMethodException e) {
109            throw new Error("TESTBUG: can't find method: " + e, e);
110        }
111        internalMemberNameMethod.setAccessible(true);
112        Object memberName;
113        try {
114            memberName = internalMemberNameMethod.invoke(mh);
115        } catch (ReflectiveOperationException e) {
116            throw new Error("TESTBUG: can't invoke internalMemberName method", e);
117        }
118        JavaConstant jcMemberName = CONSTANT_REFLECTION.forObject(memberName);
119        ResolvedJavaMethod mtd = PROVIDER.resolveLinkToTarget(jcMemberName);
120        Assert.assertEquals(mtd, META_ACCESS.lookupJavaMethod(self), "Got unexpected method: " + mtd);
121    }
122
123    @Test(expectedExceptions = {NullPointerException.class})
124    public void testResolveLinkToTargetNegativeNull() {
125        PROVIDER.resolveLinkToTarget(null);
126    }
127
128    @Test
129    public void testResolveLinkToTargetNegativeNullConstant() {
130        Assert.assertNull(PROVIDER.resolveLinkToTarget(JavaConstant.NULL_POINTER), "Expected null return");
131    }
132
133    @Test(expectedExceptions = {IllegalArgumentException.class})
134    public void testResolveLinkToTargetNegativeWrongConstant() {
135        PROVIDER.resolveLinkToTarget(CONSTANT_REFLECTION.forObject("42"));
136    }
137}
138