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src/java.base/share/classes/java/io/FileDescriptor.java

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


  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.io;
  27 
  28 import java.util.ArrayList;
  29 import java.util.List;
  30 import java.util.Objects;
  31 
  32 import jdk.internal.misc.JavaIOFileDescriptorAccess;
  33 import jdk.internal.misc.SharedSecrets;
  34 import jdk.internal.ref.PhantomCleanable;
  35 
  36 /**
  37  * Instances of the file descriptor class serve as an opaque handle
  38  * to the underlying machine-specific structure representing an open
  39  * file, an open socket, or another source or sink of bytes.
  40  * The main practical use for a file descriptor is to create a
  41  * {@link FileInputStream} or {@link FileOutputStream} to contain it.
  42  * <p>
  43  * Applications should not create their own file descriptors.
  44  *
  45  * @author  Pavani Diwanji
  46  * @since   1.0
  47  */
  48 public final class FileDescriptor {
  49 
  50     private int fd;
  51 
  52     private long handle;
  53 




  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.io;
  27 
  28 import java.util.ArrayList;
  29 import java.util.List;
  30 import java.util.Objects;
  31 
  32 import jdk.internal.access.JavaIOFileDescriptorAccess;
  33 import jdk.internal.access.SharedSecrets;
  34 import jdk.internal.ref.PhantomCleanable;
  35 
  36 /**
  37  * Instances of the file descriptor class serve as an opaque handle
  38  * to the underlying machine-specific structure representing an open
  39  * file, an open socket, or another source or sink of bytes.
  40  * The main practical use for a file descriptor is to create a
  41  * {@link FileInputStream} or {@link FileOutputStream} to contain it.
  42  * <p>
  43  * Applications should not create their own file descriptors.
  44  *
  45  * @author  Pavani Diwanji
  46  * @since   1.0
  47  */
  48 public final class FileDescriptor {
  49 
  50     private int fd;
  51 
  52     private long handle;
  53 


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