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 */
36 import com.sun.jdi.*;
37 import com.sun.jdi.event.*;
38 import com.sun.jdi.request.*;
39
40 import java.util.*;
41
42 class LineNumberOnBraceTarg {
43
44 public final static int stopLine = 50; // THIS MUST BE THE LINE NUMBER OF THE // stopline LINE
45 public final static int stopLine2 = 56; // THIS MUST BE THE LINE NUMBER OF THE // stopline2 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"); // stopLine
51 } else {
52 System.out.println("Some args to debuggee");
53 }
54 if (args.length == 0) {
55 boolean b1 = false;
56 if (b1) { // stopLine2
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!"); // stopLine2 + 6
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
81 public 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.stopLine);
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.stopLine + 4) {
113 failure("FAIL: Bug 4952629: Should be at line " +
114 (LineNumberOnBraceTarg.stopLine + 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.stopLine2);
122 resumeTo("LineNumberOnBraceTarg", LineNumberOnBraceTarg.stopLine2);
123 System.out.println("Stopped at " + LineNumberOnBraceTarg.stopLine2);
124 stepev = stepOverLine(mainThread);
125 ln = stepev.location().lineNumber();
126 System.out.println("Debuggee is stopped at line " + ln);
127 if (ln == LineNumberOnBraceTarg.stopLine2 + 1) {
128 failure("FAIL: bug 4870514: Incorrectly stopped at " +
129 (LineNumberOnBraceTarg.stopLine2 + 1));
130 } else {
131 System.out.println("Passed test for 4870514");
132 }
133
134
135 /*
136 * resume the target listening for events
137 */
138 listenUntilVMDisconnect();
139
140 /*
141 * deal with results of test
142 * if anything has called failure("foo") testFailed will be true
143 */
144 if (!testFailed) {
145 println("LineNumberOnBraceTest: passed");
146 } else {
147 throw new Exception("LineNumberOnBraceTest: failed");
148 }
149 }
150 }