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 */
34import com.sun.jdi.*;
35import com.sun.jdi.event.*;
36import com.sun.jdi.request.*;
37
38import java.util.*;
39
40    /********** target program **********/
41
42class 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
66public 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}
130