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 8016474
27 * @summary The bug only happens with C1 and G1 using a different ObjectAlignmentInBytes than KlassAlignmentInBytes (which is 8)
28 * @modules java.base/jdk.internal.misc
29 * @run main/othervm -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:ObjectAlignmentInBytes=32 GetUnsafeObjectG1PreBarrier
30 */
31
32 import java.lang.reflect.Field;
33
34 import jdk.internal.misc.Unsafe;
35
36 public class GetUnsafeObjectG1PreBarrier {
37 private static final Unsafe unsafe;
38 private static final int N = 100_000;
39
40 static {
41 try {
42 Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
43 theUnsafe.setAccessible(true);
44 unsafe = (Unsafe) theUnsafe.get(null);
45 } catch (NoSuchFieldException | IllegalAccessException e) {
46 throw new IllegalStateException(e);
47 }
48 }
49
50 public Object a;
51
52 public static void main(String[] args) throws Throwable {
53 new GetUnsafeObjectG1PreBarrier();
54 }
55
|
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 8016474
27 * @summary The bug only happens with C1 and G1 using a different ObjectAlignmentInBytes than KlassAlignmentInBytes (which is 8)
28 *
29 * @modules java.base/jdk.internal.misc
30 * @run main/othervm -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:ObjectAlignmentInBytes=32
31 * compiler.unsafe.GetUnsafeObjectG1PreBarrier
32 */
33
34 package compiler.unsafe;
35
36 import jdk.internal.misc.Unsafe;
37
38 import java.lang.reflect.Field;
39
40 public class GetUnsafeObjectG1PreBarrier {
41 private static final Unsafe unsafe;
42 private static final int N = 100_000;
43
44 static {
45 try {
46 Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
47 theUnsafe.setAccessible(true);
48 unsafe = (Unsafe) theUnsafe.get(null);
49 } catch (NoSuchFieldException | IllegalAccessException e) {
50 throw new IllegalStateException(e);
51 }
52 }
53
54 public Object a;
55
56 public static void main(String[] args) throws Throwable {
57 new GetUnsafeObjectG1PreBarrier();
58 }
59
|