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.vm.ci/jdk.vm.ci.meta
  32  *          jdk.vm.ci/jdk.vm.ci.runtime
  33  * @modules         jdk.vm.ci/jdk.vm.ci.hotspot:+open
  34  * @run testng/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  35  *      jdk.vm.ci.hotspot.test.MethodHandleAccessProviderTest
  36  */
  37 
  38 package jdk.vm.ci.hotspot.test;
  39 
  40 import jdk.vm.ci.hotspot.HotSpotConstantReflectionProvider;
  41 import jdk.vm.ci.meta.JavaConstant;
  42 import jdk.vm.ci.meta.MetaAccessProvider;
  43 import jdk.vm.ci.meta.MethodHandleAccessProvider;
  44 import jdk.vm.ci.meta.MethodHandleAccessProvider.IntrinsicMethod;
  45 import jdk.vm.ci.meta.ResolvedJavaMethod;
  46 import jdk.vm.ci.runtime.JVMCI;
  47 import org.testng.Assert;
  48 import org.testng.annotations.Test;
  49 
  50 import java.lang.invoke.MethodHandle;
  51 import java.lang.invoke.MethodHandles;
  52 import java.lang.reflect.Method;
  53 
  54 public 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 }