1 /*

     2  * Copyright (c) 2013, 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 /********** LINE NUMBER SENSITIVE! *****************************************************************/

    25 

    26 /**

    27  *  @test

    28  *  @summary Test setting breakpoints on lambda calls

    29  *

    30  *  @author Staffan Larsen

    31  *

    32  *  @run build TestScaffold VMConnection TargetListener TargetAdapter

    33  *  @run compile -g LambdaBreakpointTest.java

    34  *  @run main LambdaBreakpointTest

    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 {

    52 

    53     static int[] breakpointLines = {

    54             62, 66, 63, 64, 65, 67

    55     };

    56 

    57     public static void main(String[] args) {

    58         test();

    59     }

    60 

    61     private static void test() {

    62         Runnable r = () -> {                          // B1: L62

    63             String from = "lambda";                   // B3: L63

    64             System.out.println("Hello from " + from); // B4: L64

    65         };                                            // B5: L65

    66         r.run();                                      // B2: L66

    67         System.out.println("Goodbye.");               // B6: L67

    68     }

    69 }

    70 

    71 

    72  /********** test program **********/

    73 

    74 public class LambdaBreakpointTest extends TestScaffold {

    75 

    76     LambdaBreakpointTest (String args[]) {

    77         super(args);

    78     }

    79 

    80     public static void main(String[] args)

    81         throws Exception

    82     {

    83         new LambdaBreakpointTest (args).startTests();

    84     }

    85 

    86     /********** test core **********/

    87 

    88     protected void runTests()

    89         throws Exception

    90     {

    91         startToMain("LambdaBreakpointTestTarg");

    92 

    93         // Put a breakpoint on each location in the order they should happen

    94         for (int line : LambdaBreakpointTestTarg.breakpointLines) {

    95             System.out.println("Running to line: " + line);

    96             BreakpointEvent be = resumeTo("LambdaBreakpointTestTarg", line);

    97             int stoppedAt = be.location().lineNumber();

    98             System.out.println("Stopped at line: " + stoppedAt);

    99             if (stoppedAt != line) {

   100                 throw new Exception("Stopped on the wrong line: "

   101                         + stoppedAt + " != " + line);

   102             }

   103         }

   104 

   105         /*

   106          * resume the target listening for events

   107          */

   108         listenUntilVMDisconnect();

   109     }

   110 }