1 /* 2 * Copyright (c) 2003, 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 4728816 27 * @summary JPDA: Add support for enums 28 * @author jjh 29 * 30 * @run build TestScaffold VMConnection TargetListener TargetAdapter 31 * @run compile -g EnumTest.java 32 * @run driver EnumTest 33 */ 34 import com.sun.jdi.*; 35 import com.sun.jdi.event.*; 36 import com.sun.jdi.request.*; 37 38 import java.util.*; 39 40 /********** target program **********/ 41 42 43 enum Coin { 44 penny(1), nickel(5), dime(10), quarter(25); 45 46 Coin(int value) { this.value = value; } 47 48 private final int value; 49 50 public int value() { return value; } 51 } 52 53 class EnumTarg { 54 static Coin myCoin = Coin.penny; 55 public static void main(String[] args){ 56 System.out.println("Howdy!"); 57 System.out.println("Goodbye from EnumTarg!"); 58 } 59 } 60 61 /********** test program **********/ 62 63 public class EnumTest extends TestScaffold { 64 ReferenceType targetClass; 65 66 EnumTest (String args[]) { 67 super(args); 68 } 69 70 public static void main(String[] args) throws Exception { 71 new EnumTest(args).startTests(); 72 } 73 74 void fail(String reason) throws Exception { 75 failure(reason); 76 } 77 78 /********** test core **********/ 79 80 81 protected void runTests() throws Exception { 82 /* 83 * Get to the top of main() 84 * to determine targetClass 85 */ 86 BreakpointEvent bpe = startToMain("EnumTarg"); 87 targetClass = bpe.location().declaringType(); 88 89 ReferenceType rt = findReferenceType("EnumTarg"); 90 Field myField = rt.fieldByName("myCoin"); 91 ObjectReference enumObject = (ObjectReference)rt.getValue(myField); 92 ClassType enumClass =(ClassType) enumObject.referenceType(); 93 ClassType superClass = enumClass.superclass(); 94 if (!superClass.name().equals("java.lang.Enum")) { 95 fail("failure: Superclass of enum class is not java.lang.Enum: " + superClass.name()); 96 } 97 if (!enumClass.isEnum()) { 98 fail("failure: isEnum() is false but should be true"); 99 } 100 if (((ClassType)rt).isEnum()) { 101 fail("failure: isEnum() is true for EnumTarg but should be false"); 102 } 103 Field enumConstant = enumClass.fieldByName("penny"); 104 if (!enumConstant.isEnumConstant()) { 105 fail("failure: The 'penny' field is not marked " + 106 "as an enum constant."); 107 } 108 109 /* 110 * This isn't really part of the test, it just 111 * shows how to look at all the enum constants, 112 * but not necessarily in the correct order 113 */ 114 List allFields = enumClass.fields(); 115 List enumConstantFields = new ArrayList(); 116 StringBuffer enumDecl = new StringBuffer("enum " + enumClass.name() + " {"); 117 char delim = ' '; 118 119 for (Iterator iter = allFields.iterator(); iter.hasNext(); ) { 120 Field aField = (Field)iter.next(); 121 if (aField.isEnumConstant()) { 122 enumDecl.append(' '); 123 enumDecl.append(aField.name()); 124 enumDecl.append(delim); 125 delim = ','; 126 } 127 } 128 enumDecl.append("; };"); 129 System.out.println("Enum decl is: " + enumDecl); 130 131 listenUntilVMDisconnect(); 132 133 /* 134 * deal with results of test 135 * if anything has called failure("foo") testFailed will be true 136 */ 137 if (!testFailed) { 138 println("EnumTest: passed"); 139 } else { 140 throw new Exception("EnumTest: failed"); 141 } 142 } 143 }