1 /*
   2  * Copyright (c) 2015, 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 8136421
  27  * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9" | os.simpleArch == "aarch64")
  28  * @library / /testlibrary
  29  * @library ../common/patches
  30  * @modules jdk.vm.ci/jdk.vm.ci.hotspot
  31  * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
  32  * @build compiler.jvmci.compilerToVM.LookupTypeTest
  33  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  34  *                   compiler.jvmci.compilerToVM.LookupTypeTest
  35  */
  36 
  37 package compiler.jvmci.compilerToVM;
  38 
  39 import compiler.jvmci.common.testcases.DoNotExtendClass;
  40 import compiler.jvmci.common.testcases.MultiSubclassedClass;
  41 import compiler.jvmci.common.testcases.SingleSubclass;
  42 import java.util.HashSet;
  43 import java.util.Set;
  44 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  45 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
  46 import jdk.test.lib.Asserts;
  47 import jdk.test.lib.Utils;
  48 
  49 public class LookupTypeTest {
  50     public static void main(String args[]) {
  51         LookupTypeTest test = new LookupTypeTest();
  52         for (TestCase tcase : createTestCases()) {
  53             test.runTest(tcase);
  54         }
  55     }
  56 
  57     private static Set<TestCase> createTestCases() {
  58         Set<TestCase> result = new HashSet<>();
  59         // a primitive class
  60         result.add(new TestCase(Utils.toJVMTypeSignature(int.class),
  61                 LookupTypeTest.class, true, false, InternalError.class));
  62         // lookup not existing class
  63         result.add(new TestCase("Lsome_not_existing;", LookupTypeTest.class,
  64                 true, false, ClassNotFoundException.class));
  65         // lookup invalid classname
  66         result.add(new TestCase("L!@#$%^&**()[]{}?;", LookupTypeTest.class,
  67                 true, false, ClassNotFoundException.class));
  68         // lookup package private class
  69         result.add(new TestCase(
  70                 "Lcompiler/jvmci/compilerToVM/testcases/PackagePrivateClass;",
  71                 LookupTypeTest.class, true, false,
  72                 ClassNotFoundException.class));
  73         // lookup usual class with resolve=true
  74         result.add(new TestCase(Utils.toJVMTypeSignature(SingleSubclass.class),
  75                 LookupTypeTest.class, true, true));
  76         // lookup usual class with resolve=false
  77         result.add(new TestCase(
  78                 Utils.toJVMTypeSignature(DoNotExtendClass.class),
  79                 LookupTypeTest.class, false, true));
  80         // lookup usual class with null accessor
  81         result.add(new TestCase(
  82                 Utils.toJVMTypeSignature(MultiSubclassedClass.class), null,
  83                 false, false, NullPointerException.class));
  84         return result;
  85     }
  86 
  87     private void runTest(TestCase tcase) {
  88         System.out.println(tcase);
  89         HotSpotResolvedObjectType metaspaceKlass;
  90         try {
  91             metaspaceKlass = CompilerToVMHelper.lookupType(tcase.className,
  92                     tcase.accessing, tcase.resolve);
  93         } catch (Throwable t) {
  94             Asserts.assertNotNull(tcase.expectedException,
  95                     "Assumed no exception, but got " + t);
  96             Asserts.assertFalse(tcase.isPositive,
  97                     "Got unexpected exception " + t);
  98             Asserts.assertEQ(t.getClass(), tcase.expectedException,
  99                     "Unexpected exception");
 100             // passed
 101             return;
 102         }
 103         if (tcase.expectedException != null) {
 104             throw new AssertionError("Expected exception was not thrown: "
 105                     + tcase.expectedException.getName());
 106         }
 107         if (tcase.isPositive) {
 108             Asserts.assertNotNull(metaspaceKlass,
 109                     "Unexpected null metaspace klass");
 110             Asserts.assertEQ(metaspaceKlass.getName(), tcase.className,
 111                     "Got unexpected resolved class name");
 112         } else {
 113             Asserts.assertNull(metaspaceKlass, "Unexpected metaspace klass");
 114         }
 115     }
 116 
 117     private static class TestCase {
 118         public final String className;
 119         public final Class<?> accessing;
 120         public final boolean resolve;
 121         public final boolean isPositive;
 122         public final Class<? extends Throwable> expectedException;
 123 
 124         public TestCase(String className, Class<?> accessing, boolean resolve,
 125                 boolean isPositive,
 126                 Class<? extends Throwable> expectedException) {
 127             this.className = className;
 128             this.accessing = accessing;
 129             this.resolve = resolve;
 130             this.isPositive = isPositive;
 131             this.expectedException = expectedException;
 132         }
 133 
 134         public TestCase(String className, Class<?> accessing, boolean resolve,
 135                 boolean isPositive) {
 136             this.className = className;
 137             this.accessing = accessing;
 138             this.resolve = resolve;
 139             this.isPositive = isPositive;
 140             this.expectedException = null;
 141         }
 142 
 143         @Override
 144         public String toString() {
 145             return String.format("CASE: class=%s, accessing=%s,"
 146                 + " resolve=%s, positive=%s, expectedException=%s", className,
 147                 accessing, resolve, isPositive, expectedException);
 148         }
 149     }
 150 }