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 }