| /* |
| * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 8141615 |
| * @summary Tests new public methods at ConstantPool |
| * @modules java.base/jdk.internal.misc |
| * java.base/jdk.internal.reflect |
| * @library /lib/testlibrary |
| * @compile ConstantPoolTestDummy.jasm |
| * @run main jdk.internal.reflect.constantPool.ConstantPoolTest |
| */ |
| |
| package jdk.internal.reflect.constantPool; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| import jdk.internal.misc.SharedSecrets; |
| import jdk.testlibrary.Asserts; |
| import jdk.internal.reflect.ConstantPool; |
| |
| public class ConstantPoolTest { |
| |
| private static final Class<?> TEST_CLASS = ConstantPoolTestDummy.class; |
| private static final ConstantPool CP = SharedSecrets.getJavaLangAccess() |
| .getConstantPool(TEST_CLASS); |
| |
| public static void main(String[] s) { |
| for (TestCase testCase : TestCase.values()) { |
| testCase.test(); |
| } |
| } |
| |
| public static enum TestCase { |
| GET_TAG_AT { |
| { |
| referenceMap.put(1, ConstantPool.Tag.METHODREF); |
| referenceMap.put(2, ConstantPool.Tag.CLASS); |
| referenceMap.put(4, ConstantPool.Tag.UTF8); |
| referenceMap.put(10, ConstantPool.Tag.NAMEANDTYPE); |
| referenceMap.put(13, ConstantPool.Tag.LONG); |
| referenceMap.put(15, ConstantPool.Tag.INTEGER); |
| referenceMap.put(16, ConstantPool.Tag.INTERFACEMETHODREF); |
| referenceMap.put(21, ConstantPool.Tag.DOUBLE); |
| referenceMap.put(23, ConstantPool.Tag.STRING); |
| referenceMap.put(25, ConstantPool.Tag.INVOKEDYNAMIC); |
| referenceMap.put(29, ConstantPool.Tag.METHODHANDLE); |
| referenceMap.put(30, ConstantPool.Tag.METHODTYPE); |
| referenceMap.put(48, ConstantPool.Tag.FIELDREF); |
| referenceMap.put(52, ConstantPool.Tag.FLOAT); |
| } |
| @Override |
| void testIndex(int cpi, Object reference) { |
| ConstantPool.Tag tagToVerify = CP.getTagAt(cpi); |
| ConstantPool.Tag tagToRefer = (ConstantPool.Tag) reference; |
| String msg = String.format("Method getTagAt works not as expected" |
| + "at CP entry #%d: got CP tag %s, but should be %s", |
| cpi, tagToVerify.name(), tagToRefer.name()); |
| Asserts.assertEquals(tagToVerify, tagToRefer, msg); |
| } |
| }, |
| GET_CLASS_REF_INDEX_AT { |
| { |
| referenceMap.put(1, 3); |
| referenceMap.put(16, 17); |
| referenceMap.put(32, 35); |
| referenceMap.put(34, 3); |
| referenceMap.put(48, 2); |
| } |
| @Override |
| void testIndex(int cpi, Object reference) { |
| int indexToVerify = CP.getClassRefIndexAt(cpi); |
| int indexToRefer = (int) reference; |
| String msg = String.format("Method getClassRefIndexAt works not" |
| + " as expected at CP entry #%d:" |
| + " got index %d, but should be %d", |
| cpi, indexToVerify, indexToRefer); |
| Asserts.assertEquals(indexToVerify, indexToRefer, msg); |
| } |
| }, |
| GET_NAME_AND_TYPE_REF_INDEX_AT { |
| { |
| referenceMap.put(1, 10); |
| referenceMap.put(16, 18); |
| referenceMap.put(25, 26); |
| referenceMap.put(32, 36); |
| referenceMap.put(34, 37); |
| referenceMap.put(48, 49); |
| } |
| @Override |
| void testIndex(int cpi, Object reference) { |
| int indexToRefer = (int) reference; |
| int indexToVerify = CP.getNameAndTypeRefIndexAt(cpi); |
| String msg = String.format("Method getNameAndTypeRefIndexAt works" |
| + " not as expected at CP entry #%d:" |
| + " got index %d, but should be %d", |
| cpi, indexToVerify, indexToRefer); |
| Asserts.assertEquals(indexToVerify, indexToRefer, msg); |
| } |
| }, |
| GET_NAME_AND_TYPE_REF_INFO_AT { |
| { |
| referenceMap.put(10, new String[]{"<init>", "()V"}); |
| referenceMap.put(18, new String[]{"run", "()V"}); |
| referenceMap.put(26, new String[]{"accept", "()Ljava/util/function/Consumer;"}); |
| referenceMap.put(36, new String[]{"metafactory", |
| "(Ljava/lang/invoke/MethodHandles$Lookup;" |
| + "Ljava/lang/String;Ljava/lang/invoke/MethodType;" |
| + "Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;" |
| + "Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;"}); |
| referenceMap.put(37, new String[]{"toString", "()Ljava/lang/String;"}); |
| referenceMap.put(49, new String[]{"myField", "I"}); |
| } |
| @Override |
| void testIndex(int cpi, Object reference) { |
| String[] natInfo = CP.getNameAndTypeRefInfoAt(cpi); |
| String msg = String.format("Method getNameAndTypeRefInfoAt" |
| + " works not as expected at CP entry #%d:" |
| + " returned value should not be null", cpi); |
| Asserts.assertNotNull(natInfo, msg); |
| String[] castedReference = (String[]) reference; |
| int natInfoLength = natInfo.length; |
| msg = String.format("Method getNameAndTypeRefInfoAt" |
| + " works not as expected at CP entry #%d:" |
| + " length of the returned string array is %d, but should be 2", |
| cpi, natInfoLength); |
| Asserts.assertEquals(natInfoLength, 2, msg); |
| String[] nameOrType = new String[]{"name", "type"}; |
| for (int i = 0; i < 2; i++) { |
| String infoToVerify = natInfo[i]; |
| String infoToRefer = castedReference[i]; |
| msg = String.format("Method getNameAndTypeRefInfoAt" |
| + " works not as expected at CP entry #%d:" |
| + " got %s info %s, but should be %s", |
| cpi, nameOrType[i], infoToVerify, infoToRefer); |
| Asserts.assertEquals(infoToVerify, infoToRefer, msg); |
| } |
| } |
| }; |
| |
| protected final Map<Integer, Object> referenceMap; |
| TestCase() { |
| this.referenceMap = new HashMap<>(); |
| } |
| abstract void testIndex(int cpi, Object reference); |
| public void test() { |
| referenceMap.forEach(this::testIndex); |
| } |
| } |
| } |