1 /* 2 * Copyright (c) 2002, 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 4349534 4690242 4695338 27 * @summary regression - bad LocalVariableTable attribute when no initialization needed 28 * 29 * @author Tim Bell 30 * 31 * @run build TestScaffold VMConnection TargetListener TargetAdapter 32 * @run compile -g GetLocalVariables2Test.java 33 * @run driver GetLocalVariables2Test 34 */ 35 import com.sun.jdi.*; 36 import com.sun.jdi.event.*; 37 import com.sun.jdi.request.*; 38 39 import java.util.*; 40 41 /********** target program **********/ 42 43 class GetLocalVariables2Targ { 44 static boolean bar(int i) { 45 if (i < 2) { 46 return true; 47 } else { 48 return false; 49 } 50 } 51 52 public static void main(String[] args) { 53 int i = 1; 54 String command; 55 if (i == 0) { 56 command = "0"; 57 } else if (bar(i)) { 58 command = "1"; 59 } else { 60 command = "2"; 61 } 62 } 63 } 64 65 /********** test program **********/ 66 67 public class GetLocalVariables2Test extends TestScaffold { 68 ReferenceType targetClass; 69 ThreadReference mainThread; 70 71 GetLocalVariables2Test (String args[]) { 72 super(args); 73 } 74 75 public static void main(String[] args) throws Exception { 76 new GetLocalVariables2Test(args).startTests(); 77 } 78 79 protected void runTests() throws Exception { 80 /* 81 * Get to the top of main() 82 * to determine targetClass and mainThread 83 */ 84 BreakpointEvent bpe = startToMain("GetLocalVariables2Targ"); 85 targetClass = bpe.location().declaringType(); 86 mainThread = bpe.thread(); 87 EventRequestManager erm = vm().eventRequestManager(); 88 89 bpe = resumeTo("GetLocalVariables2Targ", "bar", "(I)Z"); 90 91 /* 92 * Inspect the stack frame for main(), not bar()... 93 */ 94 StackFrame frame = bpe.thread().frame(1); 95 List localVars = frame.visibleVariables(); 96 System.out.println(" Visible variables at this point are: "); 97 for (Iterator it = localVars.iterator(); it.hasNext();) { 98 LocalVariable lv = (LocalVariable) it.next(); 99 System.out.print(lv.name()); 100 System.out.print(" typeName: "); 101 System.out.print(lv.typeName()); 102 System.out.print(" signature: "); 103 System.out.print(lv.type().signature()); 104 System.out.print(" primitive type: "); 105 System.out.println(lv.type().name()); 106 107 if("command".equals(lv.name())) { 108 failure("Failure: LocalVariable \"command\" should not be visible at this point."); 109 if (lv.isVisible(frame)) { 110 System.out.println("Failure: \"command.isvisible(frame)\" returned true."); 111 } 112 } 113 } 114 115 /* 116 * resume the target listening for events 117 */ 118 listenUntilVMDisconnect(); 119 120 /* 121 * deal with results of test 122 * if anything has called failure("foo") testFailed will be true 123 */ 124 if (!testFailed) { 125 println("GetLocalVariables2Test: passed"); 126 } else { 127 throw new Exception("GetLocalVariables2Test: failed"); 128 } 129 } 130 }