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 8138708
  27  * @requires vm.jvmci
  28  * @library /test/lib /
  29  * @library ../common/patches
  30  * @modules java.base/jdk.internal.misc
  31  *          java.base/jdk.internal.reflect
  32  *          java.base/jdk.internal.org.objectweb.asm
  33  *          java.base/jdk.internal.org.objectweb.asm.tree
  34  *          jdk.internal.vm.ci/jdk.vm.ci.hotspot
  35  *          jdk.internal.vm.ci/jdk.vm.ci.meta
  36  *          jdk.internal.vm.ci/jdk.vm.ci.runtime
  37  *
  38  * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper sun.hotspot.WhiteBox
  39  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  40  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  41  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  42  *                   -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  43  *                   compiler.jvmci.compilerToVM.LookupMethodInPoolTest
  44  */
  45 
  46 package compiler.jvmci.compilerToVM;
  47 
  48 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes;
  49 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry;
  50 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator;
  51 import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses;
  52 import jdk.test.lib.Asserts;
  53 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  54 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
  55 import jdk.vm.ci.meta.ConstantPool;
  56 
  57 import java.util.HashMap;
  58 import java.util.Map;
  59 
  60 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_INTERFACEMETHODREF;
  61 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_METHODREF;
  62 
  63 /**
  64  * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.lookupMethodInPool} method
  65  */
  66 public class LookupMethodInPoolTest {
  67 
  68     public static void main(String[] args) throws Exception {
  69         Map<ConstantTypes, Validator> typeTests = new HashMap<>();
  70         typeTests.put(CONSTANT_METHODREF, LookupMethodInPoolTest::validate);
  71         typeTests.put(CONSTANT_INTERFACEMETHODREF, LookupMethodInPoolTest::validate);
  72         ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
  73         testCase.test();
  74         // The next "Class.forName" and repeating "testCase.test()"
  75         // are here for the following reason.
  76         // The first test run is without dummy class initialization,
  77         // which means no constant pool cache exists.
  78         // The second run is with initialized class (with constant pool cache available).
  79         // Some CompilerToVM methods require different input
  80         // depending on whether CP cache exists or not.
  81         for (DummyClasses dummy : DummyClasses.values()) {
  82             Class.forName(dummy.klass.getName());
  83         }
  84         testCase.test();
  85     }
  86 
  87     private static void validate(ConstantPool constantPoolCTVM,
  88                                  ConstantTypes cpType,
  89                                  DummyClasses dummyClass,
  90                                  int cpi) {
  91         TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi);
  92         if (entry == null) {
  93             return;
  94         }
  95         int index = cpi;
  96         String cached = "";
  97         int cpci = dummyClass.getCPCacheIndex(cpi);
  98         if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) {
  99             index = cpci;
 100             cached = "cached ";
 101         }
 102         for (int j = 0; j < entry.opcodes.length; j++) {
 103             HotSpotResolvedJavaMethod methodToVerify = CompilerToVMHelper
 104                     .lookupMethodInPool(constantPoolCTVM, index, entry.opcodes[j]);
 105             String msg = String.format("Object returned by lookupMethodInPool method"
 106                                                + " for %sindex %d should not be null",
 107                                        cached,
 108                                        index);
 109             Asserts.assertNotNull(methodToVerify, msg);
 110             String[] classNameSplit = entry.klass.split("/");
 111             String classNameToRefer = classNameSplit[classNameSplit.length - 1];
 112             String methodNameToRefer = entry.name;
 113             String methodToVerifyToString = methodToVerify.toString();
 114             if (!methodToVerifyToString.contains(classNameToRefer)
 115                     || !methodToVerifyToString.contains(methodNameToRefer)) {
 116                 msg = String.format("String representation \"%s\" of the object"
 117                                             + " returned by lookupMethodInPool method"
 118                                             + " for index %d does not contain a method's class name"
 119                                             + " or method's name, should contain %s.%s",
 120                                     methodToVerifyToString,
 121                                     index,
 122                                     classNameToRefer,
 123                                     methodNameToRefer);
 124                 throw new AssertionError(msg);
 125             }
 126         }
 127     }
 128 }