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src/java.base/share/classes/java/lang/ref/Finalizer.java

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rev 51958 : 8211122: Reduce the number of internal classes made accessible to jdk.unsupported
Reviewed-by: alanb, dfuchs, kvn


  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.lang.ref;
  27 
  28 import java.security.PrivilegedAction;
  29 import java.security.AccessController;
  30 import jdk.internal.misc.JavaLangAccess;
  31 import jdk.internal.misc.SharedSecrets;
  32 import jdk.internal.misc.VM;
  33 
  34 final class Finalizer extends FinalReference<Object> { /* Package-private; must be in
  35                                                           same package as the Reference
  36                                                           class */
  37 
  38     private static ReferenceQueue<Object> queue = new ReferenceQueue<>();
  39 
  40     /** Head of doubly linked list of Finalizers awaiting finalization. */
  41     private static Finalizer unfinalized = null;
  42 
  43     /** Lock guarding access to unfinalized list. */
  44     private static final Object lock = new Object();
  45 
  46     private Finalizer next, prev;
  47 
  48     private Finalizer(Object finalizee) {
  49         super(finalizee, queue);
  50         // push onto unfinalized
  51         synchronized (lock) {




  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.lang.ref;
  27 
  28 import java.security.PrivilegedAction;
  29 import java.security.AccessController;
  30 import jdk.internal.access.JavaLangAccess;
  31 import jdk.internal.access.SharedSecrets;
  32 import jdk.internal.misc.VM;
  33 
  34 final class Finalizer extends FinalReference<Object> { /* Package-private; must be in
  35                                                           same package as the Reference
  36                                                           class */
  37 
  38     private static ReferenceQueue<Object> queue = new ReferenceQueue<>();
  39 
  40     /** Head of doubly linked list of Finalizers awaiting finalization. */
  41     private static Finalizer unfinalized = null;
  42 
  43     /** Lock guarding access to unfinalized list. */
  44     private static final Object lock = new Object();
  45 
  46     private Finalizer next, prev;
  47 
  48     private Finalizer(Object finalizee) {
  49         super(finalizee, queue);
  50         // push onto unfinalized
  51         synchronized (lock) {


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