1 /*
2  * Copyright (c) 2013, 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  * @summary Test setting breakpoints on lambda calls
29  * @author Staffan Larsen
30  *
31  * @run build TestScaffold VMConnection TargetListener TargetAdapter
32  * @run compile -g LambdaBreakpointTest.java
33  * @run driver LambdaBreakpointTest
34  */
35 
36 import java.util.List;
37 
38 import com.sun.jdi.LocalVariable;
39 import com.sun.jdi.Location;
40 import com.sun.jdi.Method;
41 import com.sun.jdi.ObjectReference;
42 import com.sun.jdi.ReferenceType;
43 import com.sun.jdi.StackFrame;
44 import com.sun.jdi.StringReference;
45 import com.sun.jdi.ThreadReference;
46 import com.sun.jdi.event.BreakpointEvent;
47 import com.sun.jdi.event.StepEvent;
48 
49  /********** target program **********/
50 
51 class LambdaBreakpointTestTarg {
main(String[] args)52     public static void main(String[] args) {
53         test();
54     }
55 
test()56     private static void test() {
57         Runnable r = () -> {                          // LambdaBreakpointTest::TEST_LINE_1, BKPT_LINES[0]
58             String from = "lambda";                   // LambdaBreakpointTest::TEST_LINE_2, BKPT_LINES[2]
59             System.out.println("Hello from " + from); // LambdaBreakpointTest::TEST_LINE_3, BKPT_LINES[3]
60         };                                            // LambdaBreakpointTest::TEST_LINE_4, BKPT_LINES[4]
61         r.run();                                      // LambdaBreakpointTest::TEST_LINE_5, BKPT_LINES[1]
62         System.out.println("Goodbye.");               // LambdaBreakpointTest::TEST_LINE_6, BKPT_LINES[5]
63     }
64 }
65 
66 
67  /********** test program **********/
68 
69 public class LambdaBreakpointTest extends TestScaffold {
70     private static final int TEST_LINE_1 = 57;
71     private static final int TEST_LINE_2 = TEST_LINE_1 + 1;
72     private static final int TEST_LINE_3 = TEST_LINE_1 + 2;
73     private static final int TEST_LINE_4 = TEST_LINE_1 + 3;
74     private static final int TEST_LINE_5 = TEST_LINE_1 + 4;
75     private static final int TEST_LINE_6 = TEST_LINE_1 + 5;
76 
77     private static final int[] BKPT_LINES = {
78         TEST_LINE_1,
79         TEST_LINE_5,
80         TEST_LINE_2,
81         TEST_LINE_3,
82         TEST_LINE_4,
83         TEST_LINE_6,
84     };
85 
LambdaBreakpointTest(String args[])86     LambdaBreakpointTest (String args[]) {
87         super(args);
88     }
89 
main(String[] args)90     public static void main(String[] args)
91         throws Exception
92     {
93         new LambdaBreakpointTest (args).startTests();
94     }
95 
96     /********** test core **********/
97 
runTests()98     protected void runTests()
99         throws Exception
100     {
101         startToMain("LambdaBreakpointTestTarg");
102 
103         // Put a breakpoint on each location in the order they should happen
104         for (int line : BKPT_LINES) {
105             System.out.println("Running to line: " + line);
106             BreakpointEvent be = resumeTo("LambdaBreakpointTestTarg", line);
107             int stoppedAt = be.location().lineNumber();
108             System.out.println("Stopped at line: " + stoppedAt);
109             if (stoppedAt != line) {
110                 throw new Exception("Stopped on the wrong line: "
111                         + stoppedAt + " != " + line);
112             }
113         }
114 
115         /*
116          * resume the target listening for events
117          */
118         listenUntilVMDisconnect();
119     }
120 }
121