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