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 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 * @bug 8025642
33 * @modules java.base/sun.misc
34 * java.management
35 */
36
37 import com.oracle.java.testlibrary.*;
38
39 public class CdsDifferentObjectAlignment {
40 public static void main(String[] args) throws Exception {
41 String nativeWordSize = System.getProperty("sun.arch.data.model");
42 if (!Platform.is64bit()) {
43 System.out.println("ObjectAlignmentInBytes for CDS is only " +
44 "supported on 64bit platforms; this plaform is " +
45 nativeWordSize);
46 System.out.println("Skipping the test");
47 } else {
48 createAndLoadSharedArchive(16, 64);
49 createAndLoadSharedArchive(64, 32);
50 }
51 }
52
53
54 // Parameters are object alignment expressed in bytes
55 private static void
56 createAndLoadSharedArchive(int createAlignment, int loadAlignment)
57 throws Exception {
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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 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 * @bug 8025642
33 * @modules java.base/sun.misc
34 * java.management
35 */
36
37 import jdk.test.lib.*;
38
39 public class CdsDifferentObjectAlignment {
40 public static void main(String[] args) throws Exception {
41 String nativeWordSize = System.getProperty("sun.arch.data.model");
42 if (!Platform.is64bit()) {
43 System.out.println("ObjectAlignmentInBytes for CDS is only " +
44 "supported on 64bit platforms; this plaform is " +
45 nativeWordSize);
46 System.out.println("Skipping the test");
47 } else {
48 createAndLoadSharedArchive(16, 64);
49 createAndLoadSharedArchive(64, 32);
50 }
51 }
52
53
54 // Parameters are object alignment expressed in bytes
55 private static void
56 createAndLoadSharedArchive(int createAlignment, int loadAlignment)
57 throws Exception {
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