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  * @summary Verify behaviour of Unsafe.get/putByte
  27  * @library /testlibrary
  28  * @modules java.base/sun.misc
  29  *          java.management
  30  * @run main GetPutByte
  31  */
  32 
  33 import java.lang.reflect.Field;
  34 import com.oracle.java.testlibrary.*;
  35 import sun.misc.Unsafe;
  36 import static com.oracle.java.testlibrary.Asserts.*;
  37 
  38 public class GetPutByte {
  39     public static void main(String args[]) throws Exception {
  40         Unsafe unsafe = Utils.getUnsafe();
  41         Test t = new Test();
  42         Field field = Test.class.getField("b");
  43 
  44         long offset = unsafe.objectFieldOffset(field);
  45         assertEquals((byte)0, unsafe.getByte(t, offset));
  46         unsafe.putByte(t, offset, (byte)1);
  47         assertEquals((byte)1, unsafe.getByte(t, offset));
  48 
  49         long address = unsafe.allocateMemory(8);
  50         unsafe.putByte(address, (byte)2);
  51         assertEquals((byte)2, unsafe.getByte(address));
  52         unsafe.freeMemory(address);
  53 
  54         byte arrayByte[] = { -1, 0, 1, 2 };
  55         int scale = unsafe.arrayIndexScale(arrayByte.getClass());
  56         offset = unsafe.arrayBaseOffset(arrayByte.getClass());

  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  * @summary Verify behaviour of Unsafe.get/putByte
  27  * @library /testlibrary
  28  * @modules java.base/sun.misc
  29  *          java.management
  30  * @run main GetPutByte
  31  */
  32 
  33 import java.lang.reflect.Field;
  34 import jdk.test.lib.*;
  35 import sun.misc.Unsafe;
  36 import static jdk.test.lib.Asserts.*;
  37 
  38 public class GetPutByte {
  39     public static void main(String args[]) throws Exception {
  40         Unsafe unsafe = Utils.getUnsafe();
  41         Test t = new Test();
  42         Field field = Test.class.getField("b");
  43 
  44         long offset = unsafe.objectFieldOffset(field);
  45         assertEquals((byte)0, unsafe.getByte(t, offset));
  46         unsafe.putByte(t, offset, (byte)1);
  47         assertEquals((byte)1, unsafe.getByte(t, offset));
  48 
  49         long address = unsafe.allocateMemory(8);
  50         unsafe.putByte(address, (byte)2);
  51         assertEquals((byte)2, unsafe.getByte(address));
  52         unsafe.freeMemory(address);
  53 
  54         byte arrayByte[] = { -1, 0, 1, 2 };
  55         int scale = unsafe.arrayIndexScale(arrayByte.getClass());
  56         offset = unsafe.arrayBaseOffset(arrayByte.getClass());