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 8055910
  27  * @summary Arrays.copyOf doesn't perform subtype check
  28  * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement TestArrayOfNoTypeCheck
  29  *
  30  */
  31 
  32 import java.util.Arrays;
  33 
  34 public class TestArrayOfNoTypeCheck {
  35 
  36     static class A {
  37     }
  38 
  39     static class B extends A {
  40     }
  41 
  42     static B[] test(A[] arr) {
  43         return Arrays.copyOf(arr, 10, B[].class);
  44     }
  45 
  46     static public void main(String[] args) {
  47         A[] arr = new A[20];
  48         for (int i = 0; i < 20000; i++) {
  49             test(arr);
  50         }
  51         A[] arr2 = new A[20];
  52         arr2[0] = new A();
  53         boolean exception = false;
  54         try {

   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 8055910
  27  * @summary Arrays.copyOf doesn't perform subtype check
  28  * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement TestArraysCopyOfNoTypeCheck
  29  *
  30  */
  31 
  32 import java.util.Arrays;
  33 
  34 public class TestArraysCopyOfNoTypeCheck {
  35 
  36     static class A {
  37     }
  38 
  39     static class B extends A {
  40     }
  41 
  42     static B[] test(A[] arr) {
  43         return Arrays.copyOf(arr, 10, B[].class);
  44     }
  45 
  46     static public void main(String[] args) {
  47         A[] arr = new A[20];
  48         for (int i = 0; i < 20000; i++) {
  49             test(arr);
  50         }
  51         A[] arr2 = new A[20];
  52         arr2[0] = new A();
  53         boolean exception = false;
  54         try {