Thu, 26 Sep 2013 10:25:02 -0400
7195622: CheckUnhandledOops has limited usefulness now
Summary: Enable CHECK_UNHANDLED_OOPS in fastdebug builds across all supported platforms.
Reviewed-by: coleenp, hseigel, dholmes, stefank, twisti, ihse, rdurbin
Contributed-by: lois.foltan@oracle.com
1 /*
2 * Copyright (c) 2013, 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 */
24 /*
25 * @test CdsDifferentObjectAlignment
26 * @summary Testing CDS (class data sharing) using varying object alignment.
27 * Using different object alignment for each dump/load pair.
28 * This is a negative test; using object alignment for loading that
29 * is different from object alignment for creating a CDS file
30 * should fail when loading.
31 * @library /testlibrary
32 */
34 import com.oracle.java.testlibrary.*;
36 public class CdsDifferentObjectAlignment {
37 public static void main(String[] args) throws Exception {
38 String nativeWordSize = System.getProperty("sun.arch.data.model");
39 if (!Platform.is64bit()) {
40 System.out.println("ObjectAlignmentInBytes for CDS is only " +
41 "supported on 64bit platforms; this plaform is " +
42 nativeWordSize);
43 System.out.println("Skipping the test");
44 } else {
45 createAndLoadSharedArchive(16, 64);
46 createAndLoadSharedArchive(64, 32);
47 }
48 }
51 // Parameters are object alignment expressed in bytes
52 private static void
53 createAndLoadSharedArchive(int createAlignment, int loadAlignment)
54 throws Exception {
55 String createAlignmentArgument = "-XX:ObjectAlignmentInBytes=" +
56 createAlignment;
57 String loadAlignmentArgument = "-XX:ObjectAlignmentInBytes=" +
58 loadAlignment;
60 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
61 "-XX:+UnlockDiagnosticVMOptions",
62 "-XX:SharedArchiveFile=./sample.jsa",
63 "-Xshare:dump",
64 createAlignmentArgument);
66 OutputAnalyzer output = new OutputAnalyzer(pb.start());
67 output.shouldContain("Loading classes to share");
68 output.shouldHaveExitValue(0);
70 pb = ProcessTools.createJavaProcessBuilder(
71 "-XX:+UnlockDiagnosticVMOptions",
72 "-XX:SharedArchiveFile=./sample.jsa",
73 "-Xshare:on",
74 loadAlignmentArgument,
75 "-version");
77 output = new OutputAnalyzer(pb.start());
78 String expectedErrorMsg =
79 String.format(
80 "The shared archive file's ObjectAlignmentInBytes of %d " +
81 "does not equal the current ObjectAlignmentInBytes of %d",
82 createAlignment,
83 loadAlignment);
85 output.shouldContain(expectedErrorMsg);
86 output.shouldHaveExitValue(1);
87 }
88 }