rev 60538 : imported patch jep387-all.patch
1 /*
2 * Copyright (c) 2014, 2020, 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
26 * @bug 8022865
27 * @summary Tests for the -XX:CompressedClassSpaceSize command line option
28 * @requires vm.bits == 64 & vm.opt.final.UseCompressedOops == true
29 * @library /test/lib
30 * @modules java.base/jdk.internal.misc
31 * java.management
32 * @run driver CompressedClassSpaceSize
33 */
34
35 import jdk.test.lib.process.ProcessTools;
36 import jdk.test.lib.process.OutputAnalyzer;
37
38 public class CompressedClassSpaceSize {
39
40 public static void main(String[] args) throws Exception {
41 ProcessBuilder pb;
42 OutputAnalyzer output;
43 // Minimum size is 1MB
44 pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=0",
45 "-version");
46 output = new OutputAnalyzer(pb.start());
47 output.shouldContain("outside the allowed range")
48 .shouldHaveExitValue(1);
49
50 // Invalid size of -1 should be handled correctly
51 pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=-1",
52 "-version");
53 output = new OutputAnalyzer(pb.start());
54 output.shouldContain("Improperly specified VM option 'CompressedClassSpaceSize=-1'")
55 .shouldHaveExitValue(1);
56
57
58 // Maximum size is 3GB
59 pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=4g",
60 "-version");
61 output = new OutputAnalyzer(pb.start());
62 output.shouldContain("outside the allowed range")
63 .shouldHaveExitValue(1);
64
65
66 // Make sure the minimum size is set correctly and printed
67 pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
68 "-XX:CompressedClassSpaceSize=1m",
69 "-Xlog:gc+metaspace=trace",
70 "-version");
71 output = new OutputAnalyzer(pb.start());
72 output.shouldMatch("Compressed class space.*1048576")
73 .shouldHaveExitValue(0);
74
75
76 // Make sure the maximum size is set correctly and printed
77 pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
78 "-XX:CompressedClassSpaceSize=3g",
79 "-Xlog:gc+metaspace=trace",
80 "-version");
81 output = new OutputAnalyzer(pb.start());
82 output.shouldMatch("Compressed class space.*3221225472")
83 .shouldHaveExitValue(0);
84
85
86 pb = ProcessTools.createJavaProcessBuilder("-XX:-UseCompressedClassPointers",
87 "-XX:CompressedClassSpaceSize=1m",
88 "-version");
89 output = new OutputAnalyzer(pb.start());
90 output.shouldContain("Setting CompressedClassSpaceSize has no effect when compressed class pointers are not used")
91 .shouldHaveExitValue(0);
92 }
93 }
--- EOF ---