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 * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9" | os.simpleArch == "aarch64") 28 * @library /testlibrary /test/lib /compiler/jvmci/jdk.vm.ci.hotspot.test/src 29 * @modules jdk.vm.ci/jdk.vm.ci.meta 30 * jdk.vm.ci/jdk.vm.ci.runtime 31 * jdk.vm.ci/jdk.vm.ci.hotspot 32 * @run testng/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 33 * jdk.vm.ci.hotspot.test.MethodHandleAccessProviderTest 34 */ 35 36 package jdk.vm.ci.hotspot.test; 37 38 import java.lang.invoke.MethodHandle; 39 import java.lang.invoke.MethodHandles; 40 import java.lang.reflect.Method; 41 import jdk.vm.ci.hotspot.HotSpotConstantReflectionProvider; 42 import jdk.vm.ci.meta.MethodHandleAccessProvider; 43 import jdk.vm.ci.meta.ResolvedJavaMethod; 44 import jdk.vm.ci.runtime.JVMCI; 45 import jdk.vm.ci.meta.JavaConstant; 46 import jdk.vm.ci.meta.MetaAccessProvider; 47 import jdk.vm.ci.meta.MethodHandleAccessProvider.IntrinsicMethod; 48 import org.testng.annotations.Test; 49 import org.testng.Assert; 50 51 public class MethodHandleAccessProviderTest { 52 private static final HotSpotConstantReflectionProvider CONSTANT_REFLECTION = (HotSpotConstantReflectionProvider) JVMCI.getRuntime().getHostJVMCIBackend().getConstantReflection(); 53 private static final MethodHandleAccessProvider PROVIDER = CONSTANT_REFLECTION.getMethodHandleAccess(); 54 private static final MetaAccessProvider META_ACCESS = JVMCI.getRuntime().getHostJVMCIBackend().getMetaAccess(); 55 56 @Test(dataProvider = "intrinsicsPositive", dataProviderClass = MethodHandleAccessProviderData.class) 57 public void testLookupMethodHandleIntrinsic(ResolvedJavaMethod mtd, IntrinsicMethod expected) { 58 Assert.assertEquals(expected, PROVIDER.lookupMethodHandleIntrinsic(mtd), "Unexpected intrinsic returned for " + mtd); 59 } 60 61 @Test(dataProvider = "intrinsicsNegative", dataProviderClass = MethodHandleAccessProviderData.class) 62 public void testLookupMethodHandleIntrinsicNegative(ResolvedJavaMethod mtd) { 63 Assert.assertNull(PROVIDER.lookupMethodHandleIntrinsic(mtd), "Expected null return for " + mtd); 64 } 65 66 @Test(expectedExceptions = {NullPointerException.class}) 67 public void testLookupMethodHandleIntrinsicNull() { 68 PROVIDER.lookupMethodHandleIntrinsic(null); 69 } 70 71 @Test(dataProvider = "invokeBasicPositive", dataProviderClass = MethodHandleAccessProviderData.class) 72 public void testResolveInvokeBasicTarget(JavaConstant javaConstantMethodHandle, boolean force, String expected) { 73 ResolvedJavaMethod mtd = PROVIDER.resolveInvokeBasicTarget(javaConstantMethodHandle, force); 74 Assert.assertTrue(mtd.getName().startsWith(expected), "Unexpected method resolved: " + mtd); 75 } 76 77 @Test(dataProvider = "invokeBasicNegative1", dataProviderClass = MethodHandleAccessProviderData.class) 78 public void testResolveInvokeBasicTargetNegative1(JavaConstant javaConstantMethodHandle, boolean force) { 79 Assert.assertNull(PROVIDER.resolveInvokeBasicTarget(javaConstantMethodHandle, force), 80 "Expected null return for " + javaConstantMethodHandle + " with force=" + force); 81 } 82 83 @Test(dataProvider = "invokeBasicNegative2", dataProviderClass = MethodHandleAccessProviderData.class, expectedExceptions = {NullPointerException.class}) 84 public void testResolveInvokeBasicTargetNegative2(JavaConstant javaConstantMethodHandle, boolean force) { 85 PROVIDER.resolveInvokeBasicTarget(javaConstantMethodHandle, force); 86 } 87 88 @Test 89 public void testResolveLinkToTarget() { 90 Method self; 91 try { 92 self = getClass().getDeclaredMethod("testResolveLinkToTarget"); 93 } catch (NoSuchMethodException e) { 94 throw new Error("TESTBUG: can't find method: " + e, e); 95 } 96 MethodHandle mh; 97 try { 98 mh = MethodHandles.lookup().unreflect(self); 99 } catch (IllegalAccessException e) { 100 throw new Error("TESTBUG: can't get MHandle: " + e, e); 101 } 102 Method internalMemberNameMethod; 103 try { 104 internalMemberNameMethod = mh.getClass().getDeclaredMethod("internalMemberName"); 105 } catch (NoSuchMethodException e) { 106 throw new Error("TESTBUG: can't find method: " + e, e); 107 } 108 internalMemberNameMethod.setAccessible(true); 109 Object memberName; 110 try { 111 memberName = internalMemberNameMethod.invoke(mh); 112 } catch (ReflectiveOperationException e) { 113 throw new Error("TESTBUG: can't invoke internalMemberName method", e); 114 } 115 JavaConstant jcMemberName = CONSTANT_REFLECTION.forObject(memberName); 116 ResolvedJavaMethod mtd = PROVIDER.resolveLinkToTarget(jcMemberName); 117 Assert.assertEquals(mtd, META_ACCESS.lookupJavaMethod(self), "Got unexpected method: " + mtd); 118 } 119 120 @Test(expectedExceptions = {NullPointerException.class}) 121 public void testResolveLinkToTargetNegativeNull() { 122 PROVIDER.resolveLinkToTarget(null); 123 } 124 125 @Test 126 public void testResolveLinkToTargetNegativeNullConstant() { 127 Assert.assertNull(PROVIDER.resolveLinkToTarget(JavaConstant.NULL_POINTER), "Expected null return"); 128 } 129 130 @Test(expectedExceptions = {IllegalArgumentException.class}) 131 public void testResolveLinkToTargetNegativeWrongConstant() { 132 PROVIDER.resolveLinkToTarget(CONSTANT_REFLECTION.forObject("42")); 133 } 134 }