1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/*
* Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @requires vm.cds
* @bug 8005933
* @summary -Xshare:auto is the default when -Xshare is not specified
* @library /test/lib
* @modules java.base/jdk.internal.misc
* java.management
* @run main XShareAuto
*/
import jdk.test.lib.Platform;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
public class XShareAuto {
public static void main(String[] args) throws Exception {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
"-server", "-XX:+UnlockDiagnosticVMOptions",
"-XX:SharedArchiveFile=./XShareAuto.jsa", "-Xshare:dump");
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldContain("Loading classes to share");
output.shouldHaveExitValue(0);
// We have 2 test cases:
String cases[] = {
"-Xshare:auto", // case [1]: -Xshare:auto is explicitly specified.
"-showversion" // case [2]: -Xshare:auto is not explicitly specified,
// but VM should still use it by default.
};
for (String x : cases) {
pb = ProcessTools.createJavaProcessBuilder(
"-XX:+UnlockDiagnosticVMOptions",
"-XX:SharedArchiveFile=./XShareAuto.jsa",
"-Xlog:cds",
x,
"-version");
output = new OutputAnalyzer(pb.start());
String outputString = output.getOutput();
if (!outputString.contains("Unable to map")) {
// sharing may not be enabled if XShareAuto.jsa cannot be mapped due to
// ASLR.
output.shouldContain("sharing");
}
output.shouldHaveExitValue(0);
}
}
}
|
