1 /*

     2  * Copyright (c) 2014, 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 CodelistTest

    26  * @bug 8054889

    27  * @build DcmdUtil MethodIdentifierParser CodelistTest

    28  * @run main CodelistTest

    29  * @summary Test of diagnostic command Compiler.codelist

    30  */

    31 

    32 import java.io.BufferedReader;

    33 import java.io.StringReader;

    34 import java.lang.reflect.Method;

    35 

    36 public class CodelistTest {

    37 

    38     /**

    39      * This test calls Jcmd (diagnostic command tool) Compiler.codelist and then parses the output,

    40      * making sure that the first methods in the list is valid by reflection.

    41      *

    42      * Output example:

    43      *

    44      * 6 0 java.lang.System.arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V [0x00007f7b49200910, 0x00007f7b49200aa0 - 0x00007f7b49200d30]

    45      * 2 3 java.lang.String.indexOf(II)I [0x00007f7b49200d90, 0x00007f7b49200f60 - 0x00007f7b49201490]

    46      * 7 3 java.lang.Math.min(II)I [0x00007f7b4922f010, 0x00007f7b4922f180 - 0x00007f7b4922f338]

    47      * 8 3 java.lang.String.equals(Ljava/lang/Object;)Z [0x00007f7b4922fb10, 0x00007f7b4922fd40 - 0x00007f7b49230698]

    48      * 9 3 java.lang.AbstractStringBuilder.ensureCapacityInternal(I)V [0x00007f7b49232010, 0x00007f7b492321a0 - 0x00007f7b49232510]

    49      * 10 1 java.lang.Object.<init>()V [0x00007f7b49233e90, 0x00007f7b49233fe0 - 0x00007f7b49234118]

    50      *

    51      */

    52 

    53     public static void main(String arg[]) throws Exception {

    54         int ok   = 0;

    55         int fail = 0;

    56 

    57         // Get output from dcmd (diagnostic command)

    58         String result = DcmdUtil.executeDcmd("Compiler.codelist");

    59         BufferedReader r = new BufferedReader(new StringReader(result));

    60 

    61         // Grab a method name from the output

    62         String line;

    63         int count = 0;

    64 

    65         while((line = r.readLine()) != null) {

    66             count++;

    67 

    68             String[] parts = line.split(" ");

    69             // int compileID = Integer.parseInt(parts[0]);

    70             // int compileLevel = Integer.parseInt(parts[1]);

    71             String methodPrintedInLogFormat = parts[2];

    72 

    73             // skip inits and clinits - they can not be reflected

    74             if (methodPrintedInLogFormat.contains("<init>")) {

    75                 continue;

    76             }

    77             if (methodPrintedInLogFormat.contains("<clinit>")) {

    78                 continue;

    79             }

    80 

    81             MethodIdentifierParser mf = new MethodIdentifierParser(methodPrintedInLogFormat);

    82             Method m;

    83             try {

    84                 m = mf.getMethod();

    85             } catch (NoSuchMethodException e) {

    86                 m = null;

    87             }

    88             if (m == null) {

    89                 throw new Exception("Test failed");

    90             }

    91             if (count > 10) {

    92                 // Testing 10 entries is enough. Lets not waste time.

    93                 break;

    94             }

    95         }

    96     }

    97 }