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 * 29 * @author Tim Bell 30 * 31 * @modules jdk.jdi 32 * @run build TestScaffold VMConnection TargetListener TargetAdapter 33 * @run compile -g GetLocalVariables2Test.java 34 * @run driver GetLocalVariables2Test 35 */ 36 import com.sun.jdi.*; 37 import com.sun.jdi.event.*; 38 import com.sun.jdi.request.*; 39 40 import java.util.*; 41 42 /********** target program **********/ 43 44 class GetLocalVariables2Targ { 45 static boolean bar(int i) { 46 if (i < 2) { 47 return true; 48 } else { 49 return false; 50 } 51 } 52 53 public static void main(String[] args) { 54 int i = 1; 55 String command; 56 if (i == 0) { 57 command = "0"; 58 } else if (bar(i)) { 59 command = "1"; 60 } else { 61 command = "2"; 62 } 63 } 64 } 65 66 /********** test program **********/ 67 68 public class GetLocalVariables2Test extends TestScaffold { 69 ReferenceType targetClass; 70 ThreadReference mainThread; 71 72 GetLocalVariables2Test (String args[]) { 73 super(args); 74 } 75 76 public static void main(String[] args) throws Exception { 77 new GetLocalVariables2Test(args).startTests(); 78 } 79 80 protected void runTests() throws Exception { 81 /* 82 * Get to the top of main() 83 * to determine targetClass and mainThread 84 */ 85 BreakpointEvent bpe = startToMain("GetLocalVariables2Targ"); 86 targetClass = bpe.location().declaringType(); 87 mainThread = bpe.thread(); 88 EventRequestManager erm = vm().eventRequestManager(); 89 90 bpe = resumeTo("GetLocalVariables2Targ", "bar", "(I)Z"); 91 92 /* 93 * Inspect the stack frame for main(), not bar()... 94 */ 95 StackFrame frame = bpe.thread().frame(1); 96 List localVars = frame.visibleVariables(); 97 System.out.println(" Visible variables at this point are: "); 98 for (Iterator it = localVars.iterator(); it.hasNext();) { 99 LocalVariable lv = (LocalVariable) it.next(); 100 System.out.print(lv.name()); 101 System.out.print(" typeName: "); 102 System.out.print(lv.typeName()); 103 System.out.print(" signature: "); 104 System.out.print(lv.type().signature()); 105 System.out.print(" primitive type: "); 106 System.out.println(lv.type().name()); 107 108 if("command".equals(lv.name())) { 109 failure("Failure: LocalVariable \"command\" should not be visible at this point."); 110 if (lv.isVisible(frame)) { 111 System.out.println("Failure: \"command.isvisible(frame)\" returned true."); 112 } 113 } 114 } 115 116 /* 117 * resume the target listening for events 118 */ 119 listenUntilVMDisconnect(); 120 121 /* 122 * deal with results of test 123 * if anything has called failure("foo") testFailed will be true 124 */ 125 if (!testFailed) { 126 println("GetLocalVariables2Test: passed"); 127 } else { 128 throw new Exception("GetLocalVariables2Test: failed"); 129 } 130 } 131 }