CompilerQueueTest.java revision 7739:e5224765443b 
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 8069160
29 * @build DcmdUtil CompilerQueueTest
30 * @run main CompilerQueueTest
31 * @run main/othervm -XX:-TieredCompilation CompilerQueueTest
32 * @run main/othervm -Xint CompilerQueueTest
33 * @summary Test of diagnostic command Compiler.queue
34 */
35
36import java.io.BufferedReader;
37import java.io.StringReader;
38
39public class CompilerQueueTest {
40
41    /**
42     * This test calls Jcmd (diagnostic command tool) Compiler.queue and
43     * then parses the output, making sure that the output look ok.
44     *
45     *
46     * Output example:
47     *
48     * Contents of C1 compile queue
49     * ----------------------------
50     * 73       3       java.lang.AbstractStringBuilder::append (50 bytes)
51     * 74       1       java.util.TreeMap::size (5 bytes)
52     * 75       3       java.lang.StringBuilder::append (8 bytes)
53     * 83       3       java.util.TreeMap$ValueIterator::next (8 bytes)
54     * 84       1       javax.management.MBeanFeatureInfo::getName (5 bytes)
55     * ----------------------------
56     * Contents of C2 compile queue
57     * ----------------------------
58     * Empty
59     * ----------------------------
60     *
61     **/
62
63    public static void main(String arg[]) throws Exception {
64
65        // Get output from dcmd (diagnostic command)
66        String result = DcmdUtil.executeDcmd("Compiler.queue");
67        BufferedReader r = new BufferedReader(new StringReader(result));
68
69        String str = r.readLine();
70
71        while (str != null) {
72            if (str.startsWith("Contents of C")) {
73                match(r.readLine(), "----------------------------");
74                str = r.readLine();
75                if (!str.equals("Empty")) {
76                    while (str.charAt(0) != '-') {
77                        validateMethodLine(str);
78                        str = r.readLine();
79                    }
80                } else {
81                    str = r.readLine();
82                }
83                match(str,"----------------------------");
84                str = r.readLine();
85            } else {
86                throw new Exception("Failed parsing dcmd queue, line: " + str);
87            }
88        }
89    }
90
91    private static void validateMethodLine(String str)  throws Exception {
92        // Skip until package/class name begins. Trim to remove whitespace that
93        // may differ.
94        String name = str.substring(14).trim();
95        int sep = name.indexOf("::");
96        if (sep == -1) {
97            throw new Exception("Failed dcmd queue, didn't find separator :: in: " + name);
98        }
99        try {
100            Class.forName(name.substring(0, sep));
101        } catch (ClassNotFoundException e) {
102            throw new Exception("Failed dcmd queue, Class for name: " + str);
103        }
104    }
105
106    public static void match(String line, String str) throws Exception {
107        if (!line.equals(str)) {
108            throw new Exception("String equals: " + line + ", " + str);
109        }
110    }
111}
112