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 CdsSameObjectAlignment
26 * @summary Testing CDS (class data sharing) using varying object alignment.
27 * Using same object alignment for each dump/load pair
28 * @library /testlibrary
29 * @modules java.base/sun.misc
30 * java.management
31 */
32
33 import com.oracle.java.testlibrary.*;
34
35 public class CdsSameObjectAlignment {
36 public static void main(String[] args) throws Exception {
37 String nativeWordSize = System.getProperty("sun.arch.data.model");
38 if (!Platform.is64bit()) {
39 System.out.println("ObjectAlignmentInBytes for CDS is only " +
40 "supported on 64bit platforms; this plaform is " +
41 nativeWordSize);
42 System.out.println("Skipping the test");
43 } else {
44 dumpAndLoadSharedArchive(8);
45 dumpAndLoadSharedArchive(16);
46 dumpAndLoadSharedArchive(32);
47 dumpAndLoadSharedArchive(64);
48 }
49 }
50
51 private static void
52 dumpAndLoadSharedArchive(int objectAlignmentInBytes) throws Exception {
53 String objectAlignmentArg = "-XX:ObjectAlignmentInBytes="
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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 CdsSameObjectAlignment
26 * @summary Testing CDS (class data sharing) using varying object alignment.
27 * Using same object alignment for each dump/load pair
28 * @library /testlibrary
29 * @modules java.base/sun.misc
30 * java.management
31 */
32
33 import jdk.test.lib.*;
34
35 public class CdsSameObjectAlignment {
36 public static void main(String[] args) throws Exception {
37 String nativeWordSize = System.getProperty("sun.arch.data.model");
38 if (!Platform.is64bit()) {
39 System.out.println("ObjectAlignmentInBytes for CDS is only " +
40 "supported on 64bit platforms; this plaform is " +
41 nativeWordSize);
42 System.out.println("Skipping the test");
43 } else {
44 dumpAndLoadSharedArchive(8);
45 dumpAndLoadSharedArchive(16);
46 dumpAndLoadSharedArchive(32);
47 dumpAndLoadSharedArchive(64);
48 }
49 }
50
51 private static void
52 dumpAndLoadSharedArchive(int objectAlignmentInBytes) throws Exception {
53 String objectAlignmentArg = "-XX:ObjectAlignmentInBytes="
|