1/* 2 * Copyright (c) 2007, 2017, 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// THIS TEST IS LINE NUMBER SENSITIVE 25 26/** 27 * @test 28 * @bug 4952629 4870514 29 * @summary REGRESSION: javac generates a spurious line number entry on } else { 30 * @author jjh 31 * 32 * @run build VMConnection TargetListener TargetAdapter 33 * @run compile -g LineNumberOnBraceTest.java 34 * @run driver LineNumberOnBraceTest 35 */ 36import com.sun.jdi.*; 37import com.sun.jdi.event.*; 38import com.sun.jdi.request.*; 39 40import java.util.*; 41 42class LineNumberOnBraceTarg { 43 44 public final static int STOP_LINE = 50; // THIS MUST BE THE LINE NUMBER OF // STOP_LINE LINE 45 public final static int STOP_LINE_2 = 56; // THIS MUST BE THE LINE NUMBER OF // STOP_LINE_2 LINE 46 47 public static void main(String[] args){ 48 System.out.println("Howdy!"); 49 if (args.length == 0) { 50 System.out.println("No args to debuggee"); // STOP_LINE 51 } else { 52 System.out.println("Some args to debuggee"); 53 } 54 if (args.length == 0) { // STOP_LINE + 4 55 boolean b1 = false; 56 if (b1) { // STOP_LINE_2 57 System.out.println("In 2nd else"); // bug 4870514 is that we stop here. 58 } 59 } else { 60 System.out.println("In 2nd else"); 61 } 62 System.out.println("Goodbye from LineNumberOnBraceTarg!"); 63 } 64 65 // This isn't part of the test; it is just here 66 // so one can see what line numbers are generated for a finally. 67 public void exampleOfThrow() { 68 try { 69 throw new Exception(); 70 } catch (Exception e) { 71 System.out.println("caught exception"); 72 } finally { 73 System.out.println("finally"); 74 } 75 } 76 77} 78 79 /********** test program **********/ 80 81public class LineNumberOnBraceTest extends TestScaffold { 82 ReferenceType targetClass; 83 ThreadReference mainThread; 84 85 LineNumberOnBraceTest (String args[]) { 86 super(args); 87 } 88 89 public static void main(String[] args) throws Exception { 90 new LineNumberOnBraceTest(args).startTests(); 91 } 92 /********** test core **********/ 93 94 protected void runTests() throws Exception { 95 /* 96 * Get to the top of main() 97 * to determine targetClass and mainThread 98 */ 99 BreakpointEvent bpe = startToMain("LineNumberOnBraceTarg"); 100 targetClass = bpe.location().declaringType(); 101 mainThread = bpe.thread(); 102 103 resumeTo("LineNumberOnBraceTarg", LineNumberOnBraceTarg.STOP_LINE); 104 StepEvent stepev = stepOverLine(mainThread); // step to 2nd if (args.length 105 106 // Bug 4952629 is that javac outputs a line number 107 // on the goto around the else which causes us to 108 // be stopped at that goto instead of the println("Goodbye ...") 109 110 int ln = stepev.location().lineNumber(); 111 System.out.println("Debuggee is stopped at line " + ln); 112 if (ln != LineNumberOnBraceTarg.STOP_LINE + 4) { 113 failure("FAIL: Bug 4952629: Should be at line " + 114 (LineNumberOnBraceTarg.STOP_LINE + 4) + 115 ", am at " + ln); 116 } else { 117 System.out.println("Passed test for 4952629"); 118 } 119 120 // Test for bug 4870514 121 System.out.println("Resuming to " + LineNumberOnBraceTarg.STOP_LINE_2); 122 resumeTo("LineNumberOnBraceTarg", LineNumberOnBraceTarg.STOP_LINE_2); 123 System.out.println("Stopped at " + LineNumberOnBraceTarg.STOP_LINE_2); 124 stepev = stepOverLine(mainThread); 125 ln = stepev.location().lineNumber(); 126 System.out.println("Debuggee is stopped at line " + ln); 127 if (ln <= LineNumberOnBraceTarg.STOP_LINE_2 + 1) { 128 failure("FAIL: bug 4870514: Incorrectly stopped at " + ln); 129 } else { 130 System.out.println("Passed test for 4870514"); 131 } 132 133 134 /* 135 * resume the target listening for events 136 */ 137 listenUntilVMDisconnect(); 138 139 /* 140 * deal with results of test 141 * if anything has called failure("foo") testFailed will be true 142 */ 143 if (!testFailed) { 144 println("LineNumberOnBraceTest: passed"); 145 } else { 146 throw new Exception("LineNumberOnBraceTest: failed"); 147 } 148 } 149} 150