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  * @library ..
  28  * @ignore 8061199 8061250
  29  * @build DcmdUtil CompilerQueueTest
  30  * @run main CompilerQueueTest
  31  * @run main/othervm -Xint CompilerQueueTest
  32  * @summary Test of diagnostic command Compiler.queue
  33  */
  34 
  35 import java.io.BufferedReader;
  36 import java.io.StringReader;
  37 
  38 public class CompilerQueueTest {
  39 
  40     /**
  41      * This test calls Jcmd (diagnostic command tool) Compiler.queue and
  42      * then parses the output, making sure that the output look ok.
  43      *
  44      *
  45      * Output example:
  46      *
  47      * Contents of C1 compile queue
  48      * ----------------------------
  49      * 73       3       java.lang.AbstractStringBuilder::append (50 bytes)
  50      * 74       1       java.util.TreeMap::size (5 bytes)
  51      * 75       3       java.lang.StringBuilder::append (8 bytes)
  52      * 83       3       java.util.TreeMap$ValueIterator::next (8 bytes)
  53      * 84       1       javax.management.MBeanFeatureInfo::getName (5 bytes)
  54      * ----------------------------
  55      * Contents of C2 compile queue
  56      * ----------------------------
  57      * Empty
  58      * ----------------------------
  59      *
  60      **/
  61 
  62     public static void main(String arg[]) throws Exception {
  63 
  64         // Get output from dcmd (diagnostic command)
  65         String result = DcmdUtil.executeDcmd("Compiler.queue");
  66         BufferedReader r = new BufferedReader(new StringReader(result));
  67 
  68         String str = r.readLine();
  69 
  70         while (str != null) {
  71             if (str.startsWith("Contents of C")) {
  72                 match(r.readLine(), "----------------------------");
  73                 str = r.readLine();
  74                 if (!str.equals("Empty")) {
  75                     while (str.charAt(0) != '-') {
  76                         validateMethodLine(str);
  77                         str = r.readLine();
  78                     }
  79                 } else {
  80                     str = r.readLine();
  81                 }
  82                 match(str,"----------------------------");
  83                 str = r.readLine();
  84             } else {
  85                 throw new Exception("Failed parsing dcmd queue, line: " + str);
  86             }
  87         }
  88     }
  89 
  90     private static void validateMethodLine(String str)  throws Exception {
  91         String name = str.substring(19);
  92         int sep = name.indexOf("::");
  93         if (sep == -1) {
  94             throw new Exception("Failed dcmd queue, didn't find separator :: in: " + name);
  95         }
  96         try {
  97             Class.forName(name.substring(0, sep));
  98         } catch (ClassNotFoundException e) {
  99             throw new Exception("Failed dcmd queue, Class for name: " + str);
 100         }
 101     }
 102 
 103     public static void match(String line, String str) throws Exception {
 104         if (!line.equals(str)) {
 105             throw new Exception("String equals: " + line + ", " + str);
 106         }
 107     }
 108 }