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 6499848
  27  * @library /test/lib

  28  * @run main GCDuringIteration
  29  * @summary Check that iterators work properly in the presence of
  30  *          concurrent finalization and removal of elements.
  31  * @key randomness
  32  */
  33 
  34 import static java.util.concurrent.TimeUnit.SECONDS;
  35 
  36 import java.lang.ref.WeakReference;
  37 import java.util.Arrays;
  38 import java.util.Iterator;
  39 import java.util.Map;
  40 import java.util.NoSuchElementException;
  41 import java.util.Random;
  42 import java.util.WeakHashMap;
  43 import java.util.concurrent.CountDownLatch;
  44 import java.util.function.BooleanSupplier;
  45 import jdk.test.lib.RandomFactory;
  46 
  47 public class GCDuringIteration {

   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 6499848
  27  * @library /test/lib
  28  * @build jdk.test.lib.RandomFactory
  29  * @run main GCDuringIteration
  30  * @summary Check that iterators work properly in the presence of
  31  *          concurrent finalization and removal of elements.
  32  * @key randomness
  33  */
  34 
  35 import static java.util.concurrent.TimeUnit.SECONDS;
  36 
  37 import java.lang.ref.WeakReference;
  38 import java.util.Arrays;
  39 import java.util.Iterator;
  40 import java.util.Map;
  41 import java.util.NoSuchElementException;
  42 import java.util.Random;
  43 import java.util.WeakHashMap;
  44 import java.util.concurrent.CountDownLatch;
  45 import java.util.function.BooleanSupplier;
  46 import jdk.test.lib.RandomFactory;
  47 
  48 public class GCDuringIteration {