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 CompilerQueueTest
  26  * @bug 8054889
  27  * @build DcmdUtil CompilerQueueTest
  28  * @run main CompilerQueueTest
  29  * @summary testing of Dcmd Compiler.queue
  30  * @author nils.eliasson@oracle.com
  31  */
  32 
  33 import java.io.BufferedReader;
  34 import java.io.StringReader;
  35 
  36 public class CompilerQueueTest {
  37 
  38     /**
  39      * This test calls Jcmd Compiler.queue and then parses the output,
  40      * making sure that the output look ok. To get a stable verifiable output
  41      * we prevent the Compiler from adding or removing tasks, then
  42      * add one manually, and finally check that it looks ok.
  43      */
  44 
  45     /**
  46      * Contents of C1 compile queue
  47      * ----------------------------
  48      * 73       3       java.lang.AbstractStringBuilder::append (50 bytes)
  49      * 74       1       java.util.TreeMap::size (5 bytes)
  50      * 75       3       java.lang.StringBuilder::append (8 bytes)
  51      * 83       3       java.util.TreeMap$ValueIterator::next (8 bytes)
  52      * 84       1       javax.management.MBeanFeatureInfo::getName (5 bytes)
  53      * ----------------------------
  54      * Contents of C2 compile queue
  55      * ----------------------------
  56      * Empty
  57      * ----------------------------
  58      **/
  59 
  60     public static void main(String arg[]) throws Exception {
  61 
  62         // Find in output from dcmd
  63         String result = DcmdUtil.executeDcmd("Compiler.queue");
  64         BufferedReader r = new BufferedReader(new StringReader(result));
  65 
  66         String line;
  67         match(r.readLine(), "Contents of C1 compile queue");
  68         match(r.readLine(), "----------------------------");
  69         String str = r.readLine();
  70         if (!str.equals("Empty")) {
  71             while (str.charAt(0) != '-') {
  72                 validateMethodLine(str);
  73                 str = r.readLine();
  74             }
  75         } else {
  76             str = r.readLine();
  77         }
  78 
  79         match(str,          "----------------------------");
  80         match(r.readLine(), "Contents of C2 compile queue");
  81         match(r.readLine(), "----------------------------");
  82         str = r.readLine();
  83         if (!str.equals("Empty")) {
  84             while (str.charAt(0) != '-') {
  85                 validateMethodLine(str);
  86                 str = r.readLine();
  87             }
  88         } else {
  89             str = r.readLine();
  90         }
  91         match(str, "----------------------------");
  92     }
  93 
  94     private static void validateMethodLine(String str)  throws Exception {
  95         String name = str.substring(19);
  96         int sep = name.indexOf("::");
  97         try {
  98             Class.forName(name.substring(0, sep));
  99         } catch (ClassNotFoundException e) {
 100             throw new Exception("Failed parsing dcmd queue");
 101         }
 102     }
 103 
 104     public static void match(String line, String str) throws Exception {
 105         if (!line.equals(str)) {
 106             throw new Exception("String equals: " + line + ", " + str);
 107         }
 108     }
 109 }