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