1 /*

     2  * Copyright 2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 import java.io.*;

    25 import java.util.*;

    26 

    27 /*

    28  * @test

    29  * @bug 6824493

    30  * @summary experimental support for additional info for instructions

    31  * @compile -g T6824493.java

    32  * @run main T6824493

    33  */

    34 public class T6824493 {

    35     public static void main(String... args) {

    36         new T6824493().run();

    37     }

    38 

    39     void run() {

    40         // for each of the options, we run javap and check for some

    41         // marker strings in the output that generally indicate the

    42         // presence of the expected output, without being as specific

    43         // as a full golden file test.

    44         test("-XDdetails:source",

    45             "for (int i = 0; i < 10; i++) {",

    46             "System.out.println(s + i);");

    47 

    48         test("-XDdetails:tryBlocks",

    49                 "try[0]",

    50                 "end try[0]",

    51                 "catch[0]");

    52 

    53         test("-XDdetails:stackMaps",

    54                 "StackMap locals:  this java/lang/String int",

    55                 "StackMap stack:  java/lang/Throwable");

    56 

    57         test("-XDdetails:localVariables",

    58                 "start local 3 // java.util.List list",

    59                 "end local 3 // java.util.List list");

    60 

    61         test("-XDdetails:localVariableTypes",

    62                 "start generic local 3 // java.util.List<java.lang.String> list",

    63                 "end generic local 3 // java.util.List<java.lang.String> list");

    64 

    65         if (errors > 0)

    66             throw new Error(errors + " errors found");

    67     }

    68 

    69     void test(String option, String... expect) {

    70         String[] args = {

    71             "-c",

    72             "-classpath",

    73             testSrc + File.pathSeparator + testClasses,

    74             option,

    75             "Test"

    76         };

    77         StringWriter sw = new StringWriter();

    78         PrintWriter pw = new PrintWriter(sw);

    79         int rc = com.sun.tools.javap.Main.run(args, pw);

    80         if (rc != 0) {

    81             error("unexpected return code from javap: " + rc);

    82             return;

    83         }

    84 

    85         String out = sw.toString();

    86         System.out.println(out);

    87         for (String e: expect) {

    88             if (!out.contains(e))

    89                 error("Not found: " + e);

    90         }

    91     }

    92 

    93     void error(String msg) {

    94         System.err.println("Error: " + msg);

    95         errors++;

    96     }

    97 

    98     private int errors;

    99     private String testSrc = System.getProperty("test.src", ".");

   100     private String testClasses = System.getProperty("test.classes", ".");

   101 }

   102 

   103 class Test {

   104     void m(String s) {

   105         for (int i = 0; i < 10; i++) {

   106             try {

   107                 List<String> list = null;

   108                 System.out.println(s + i);

   109             } catch (NullPointerException e) {

   110                 System.out.println("catch NPE");

   111             } finally {

   112                 System.out.println("finally");

   113             }

   114         }

   115     }

   116 }