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 /*
  26  * @test
  27  * @bug 8138708
  28  * @requires (vm.arch == "x64" | vm.arch == "sparcv9" | vm.arch == "arm64")
  29  * @library /testlibrary /test/lib /
  30  * @library ../common/patches
  31  * @modules java.base/jdk.internal.misc
  32  *          java.base/jdk.internal.reflect
  33  *          java.base/jdk.internal.org.objectweb.asm
  34  *          java.base/jdk.internal.org.objectweb.asm.tree
  35  *          jdk.vm.ci/jdk.vm.ci.hotspot
  36  *          jdk.vm.ci/jdk.vm.ci.meta
  37  * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
  38  * @build sun.hotspot.WhiteBox
  39  *        compiler.jvmci.compilerToVM.LookupMethodInPoolTest
  40  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  41  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  42  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  43  *                   -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  44  *                   compiler.jvmci.compilerToVM.LookupMethodInPoolTest
  45  */
  46 
  47 package compiler.jvmci.compilerToVM;
  48 
  49 import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses;
  50 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes;
  51 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.*;
  52 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry;
  53 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator;
  54 import java.util.HashMap;
  55 import java.util.Map;
  56 import jdk.test.lib.Asserts;
  57 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  58 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
  59 import jdk.vm.ci.meta.ConstantPool;
  60 
  61 /**
  62  * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.lookupMethodInPool} method
  63  */
  64 public class LookupMethodInPoolTest {
  65 
  66     public static void main(String[] args) throws Exception {
  67         Map<ConstantTypes, Validator> typeTests = new HashMap<>();
  68         typeTests.put(CONSTANT_METHODREF, LookupMethodInPoolTest::validate);
  69         typeTests.put(CONSTANT_INTERFACEMETHODREF, LookupMethodInPoolTest::validate);
  70         ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
  71         testCase.test();
  72         // The next "Class.forName" and repeating "testCase.test()"
  73         // are here for the following reason.
  74         // The first test run is without dummy class initialization,
  75         // which means no constant pool cache exists.
  76         // The second run is with initialized class (with constant pool cache available).
  77         // Some CompilerToVM methods require different input
  78         // depending on whether CP cache exists or not.
  79         for (DummyClasses dummy : DummyClasses.values()) {
  80             Class.forName(dummy.klass.getName());
  81         }
  82         testCase.test();
  83     }
  84 
  85     private static void validate(ConstantPool constantPoolCTVM,
  86                                  ConstantTypes cpType,
  87                                  DummyClasses dummyClass,
  88                                  int cpi) {
  89         TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi);
  90         if (entry == null) {
  91             return;
  92         }
  93         int index = cpi;
  94         String cached = "";
  95         int cpci = dummyClass.getCPCacheIndex(cpi);
  96         if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) {
  97             index = cpci;
  98             cached = "cached ";
  99         }
 100         for (int j = 0; j < entry.opcodes.length; j++) {
 101             HotSpotResolvedJavaMethod methodToVerify = CompilerToVMHelper
 102                     .lookupMethodInPool(constantPoolCTVM, index, entry.opcodes[j]);
 103             String msg = String.format("Object returned by lookupMethodInPool method"
 104                                                + " for %sindex %d should not be null",
 105                                        cached,
 106                                        index);
 107             Asserts.assertNotNull(methodToVerify, msg);
 108             String[] classNameSplit = entry.klass.split("/");
 109             String classNameToRefer = classNameSplit[classNameSplit.length - 1];
 110             String methodNameToRefer = entry.name;
 111             String methodToVerifyToString = methodToVerify.toString();
 112             if (!methodToVerifyToString.contains(classNameToRefer)
 113                     || !methodToVerifyToString.contains(methodNameToRefer)) {
 114                 msg = String.format("String representation \"%s\" of the object"
 115                                             + " returned by lookupMethodInPool method"
 116                                             + " for index %d does not contain a method's class name"
 117                                             + " or method's name, should contain %s.%s",
 118                                     methodToVerifyToString,
 119                                     index,
 120                                     classNameToRefer,
 121                                     methodNameToRefer);
 122                 throw new AssertionError(msg);
 123             }
 124         }
 125     }
 126 }