rev 51958 : 8211122: Reduce the number of internal classes made accessible to jdk.unsupported
Reviewed-by: alanb, dfuchs, kvn
rev 51959 : resolve JDK-8211122

   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 8141615
  27  * @summary Tests new public methods at ConstantPool
  28  * @modules java.base/jdk.internal.access
  29  *          java.base/jdk.internal.reflect
  30  * @library /lib/testlibrary
  31  * @compile ConstantPoolTestDummy.jasm
  32  * @run main jdk.internal.reflect.constantPool.ConstantPoolTest
  33  */
  34 
  35 package jdk.internal.reflect.constantPool;
  36 
  37 import java.util.HashMap;
  38 import java.util.Map;
  39 import jdk.internal.access.SharedSecrets;

  40 import jdk.internal.reflect.ConstantPool;
  41 import jdk.testlibrary.Asserts;
  42 
  43 public class ConstantPoolTest {
  44 
  45     private static final Class<?> TEST_CLASS = ConstantPoolTestDummy.class;
  46     private static final ConstantPool CP = SharedSecrets.getJavaLangAccess()
  47             .getConstantPool(TEST_CLASS);
  48 
  49     public static void main(String[] s) {
  50         for (TestCase testCase : TestCase.values()) {
  51             testCase.test();
  52         }
  53     }
  54 
  55     public static enum TestCase {
  56         GET_TAG_AT {
  57             {
  58                 referenceMap.put(1, ConstantPool.Tag.METHODREF);
  59                 referenceMap.put(2, ConstantPool.Tag.CLASS);
  60                 referenceMap.put(4, ConstantPool.Tag.UTF8);
  61                 referenceMap.put(10, ConstantPool.Tag.NAMEANDTYPE);
  62                 referenceMap.put(13, ConstantPool.Tag.LONG);
  63                 referenceMap.put(15, ConstantPool.Tag.INTEGER);
  64                 referenceMap.put(16, ConstantPool.Tag.INTERFACEMETHODREF);
  65                 referenceMap.put(21, ConstantPool.Tag.DOUBLE);
  66                 referenceMap.put(23, ConstantPool.Tag.STRING);
  67                 referenceMap.put(25, ConstantPool.Tag.INVOKEDYNAMIC);
  68                 referenceMap.put(29, ConstantPool.Tag.METHODHANDLE);
  69                 referenceMap.put(30, ConstantPool.Tag.METHODTYPE);
  70                 referenceMap.put(48, ConstantPool.Tag.FIELDREF);
  71                 referenceMap.put(52, ConstantPool.Tag.FLOAT);
  72             }
  73             @Override
  74             void testIndex(int cpi, Object reference) {
  75                 ConstantPool.Tag tagToVerify = CP.getTagAt(cpi);
  76                 ConstantPool.Tag tagToRefer = (ConstantPool.Tag) reference;
  77                 String msg = String.format("Method getTagAt works not as expected"
  78                         + "at CP entry #%d: got CP tag %s, but should be %s",
  79                         cpi, tagToVerify.name(), tagToRefer.name());
  80                 Asserts.assertEquals(tagToVerify, tagToRefer, msg);
  81             }
  82         },
  83         GET_CLASS_REF_INDEX_AT {
  84             {
  85                 referenceMap.put(1, 3);
  86                 referenceMap.put(16, 17);
  87                 referenceMap.put(32, 35);
  88                 referenceMap.put(34, 3);
  89                 referenceMap.put(48, 2);
  90             }
  91             @Override
  92             void testIndex(int cpi, Object reference) {
  93                 int indexToVerify = CP.getClassRefIndexAt(cpi);
  94                 int indexToRefer = (int) reference;
  95                 String msg = String.format("Method getClassRefIndexAt works not"
  96                         + " as expected at CP entry #%d:"
  97                         + " got index %d, but should be %d",
  98                         cpi, indexToVerify, indexToRefer);
  99                 Asserts.assertEquals(indexToVerify, indexToRefer, msg);
 100             }
 101         },
 102         GET_NAME_AND_TYPE_REF_INDEX_AT {
 103             {
 104                 referenceMap.put(1, 10);
 105                 referenceMap.put(16, 18);
 106                 referenceMap.put(25, 26);
 107                 referenceMap.put(32, 36);
 108                 referenceMap.put(34, 37);
 109                 referenceMap.put(48, 49);
 110             }
 111             @Override
 112             void testIndex(int cpi, Object reference) {
 113                 int indexToRefer = (int) reference;
 114                 int indexToVerify = CP.getNameAndTypeRefIndexAt(cpi);
 115                 String msg = String.format("Method getNameAndTypeRefIndexAt works"
 116                         + " not as expected at CP entry #%d:"
 117                         + " got index %d, but should be %d",
 118                         cpi, indexToVerify, indexToRefer);
 119                 Asserts.assertEquals(indexToVerify, indexToRefer, msg);
 120             }
 121         },
 122         GET_NAME_AND_TYPE_REF_INFO_AT {
 123             {
 124                 referenceMap.put(10, new String[]{"<init>", "()V"});
 125                 referenceMap.put(18, new String[]{"run", "()V"});
 126                 referenceMap.put(26, new String[]{"accept", "()Ljava/util/function/Consumer;"});
 127                 referenceMap.put(36, new String[]{"metafactory",
 128                         "(Ljava/lang/invoke/MethodHandles$Lookup;"
 129                         + "Ljava/lang/String;Ljava/lang/invoke/MethodType;"
 130                         + "Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;"
 131                         + "Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;"});
 132                 referenceMap.put(37, new String[]{"toString", "()Ljava/lang/String;"});
 133                 referenceMap.put(49, new String[]{"myField", "I"});
 134             }
 135             @Override
 136             void testIndex(int cpi, Object reference) {
 137                 String[] natInfo = CP.getNameAndTypeRefInfoAt(cpi);
 138                 String msg = String.format("Method getNameAndTypeRefInfoAt"
 139                         + " works not as expected at CP entry #%d:"
 140                         + " returned value should not be null", cpi);
 141                 Asserts.assertNotNull(natInfo, msg);
 142                 String[] castedReference = (String[]) reference;
 143                 int natInfoLength = natInfo.length;
 144                 msg = String.format("Method getNameAndTypeRefInfoAt"
 145                         + " works not as expected at CP entry #%d:"
 146                         + " length of the returned string array is %d, but should be 2",
 147                         cpi, natInfoLength);
 148                 Asserts.assertEquals(natInfoLength, 2, msg);
 149                 String[] nameOrType = new String[]{"name", "type"};
 150                 for (int i = 0; i < 2; i++) {
 151                     String infoToVerify = natInfo[i];
 152                     String infoToRefer = castedReference[i];
 153                     msg = String.format("Method getNameAndTypeRefInfoAt"
 154                             + " works not as expected at CP entry #%d:"
 155                             + " got %s info %s, but should be %s",
 156                             cpi, nameOrType[i], infoToVerify, infoToRefer);
 157                     Asserts.assertEquals(infoToVerify, infoToRefer, msg);
 158                 }
 159             }
 160         };
 161 
 162         protected final Map<Integer, Object> referenceMap;
 163         TestCase() {
 164             this.referenceMap = new HashMap<>();
 165         }
 166         abstract void testIndex(int cpi, Object reference);
 167         public void test() {
 168             referenceMap.forEach(this::testIndex);
 169         }
 170     }
 171 }
--- EOF ---