src/java.base/share/classes/java/nio/channels/FileChannel.java

*** 815,824 ****
--- 815,836 ----
           * Mode for a private (copy-on-write) mapping.
           */
          public static final MapMode PRIVATE
              = new MapMode("PRIVATE");
  
+         /**
+          * Mode for a read-only mapping from a non-volatile device.
+          */
+         public static final MapMode READ_ONLY_PERSISTENT
+             = new MapMode("READ_ONLY_PERSISTENT");
+ 
+         /**
+          * Mode for a read/write mapping from a non-volatile device.
+          */
+         public static final MapMode READ_WRITE_PERSISTENT
+             = new MapMode("READ_WRITE_PERSISTENT");
+ 
          private final String name;
  
          private MapMode(String name) {
              this.name = name;
          }
*** 887,900 ****
       * standpoint of performance it is generally only worth mapping relatively
       * large files into memory.  </p>
       *
       * @param  mode
       *         One of the constants {@link MapMode#READ_ONLY READ_ONLY}, {@link
!      *         MapMode#READ_WRITE READ_WRITE}, or {@link MapMode#PRIVATE
!      *         PRIVATE} defined in the {@link MapMode} class, according to
       *         whether the file is to be mapped read-only, read/write, or
!      *         privately (copy-on-write), respectively
       *
       * @param  position
       *         The position within the file at which the mapped region
       *         is to start; must be non-negative
       *
--- 899,914 ----
       * standpoint of performance it is generally only worth mapping relatively
       * large files into memory.  </p>
       *
       * @param  mode
       *         One of the constants {@link MapMode#READ_ONLY READ_ONLY}, {@link
!      *         MapMode#READ_WRITE READ_WRITE}, {@link MapMode#PRIVATE
!      *         PRIVATE}, {@link MapMode#READ_ONLY_PERSISTENT READ_ONLY_PERSISTENT}
!      *         or {@link MapMode#READ_WRITE_PERSISTENT READ_WRITE_PERSISTENT} defined in the {@link MapMode} class, according to
       *         whether the file is to be mapped read-only, read/write, or
!      *         privately (copy-on-write), read-only from a non-volatile
!      *         device or read-write from a non-volatile device, respectively
       *
       * @param  position
       *         The position within the file at which the mapped region
       *         is to start; must be non-negative
       *
*** 903,919 ****
       *         no greater than {@link java.lang.Integer#MAX_VALUE}
       *
       * @return  The mapped byte buffer
       *
       * @throws NonReadableChannelException
!      *         If the {@code mode} is {@link MapMode#READ_ONLY READ_ONLY} but
       *         this channel was not opened for reading
       *
       * @throws NonWritableChannelException
!      *         If the {@code mode} is {@link MapMode#READ_WRITE READ_WRITE} or
!      *         {@link MapMode#PRIVATE PRIVATE} but this channel was not opened
!      *         for both reading and writing
       *
       * @throws IllegalArgumentException
       *         If the preconditions on the parameters do not hold
       *
       * @throws IOException
--- 917,934 ----
       *         no greater than {@link java.lang.Integer#MAX_VALUE}
       *
       * @return  The mapped byte buffer
       *
       * @throws NonReadableChannelException
!      *         If the {@code mode} is {@link MapMode#READ_ONLY READ_ONLY} or
!      *         {@link MapMode#READ_ONLY_PERSISTENT READ_ONLY_PERSISTENT} but
       *         this channel was not opened for reading
       *
       * @throws NonWritableChannelException
!      *         If the {@code mode} is {@link MapMode#READ_WRITE READ_WRITE},
!      *         {@link MapMode#PRIVATE PRIVATE} or {@link MapMode#READ_WRITE_PERSISTENT READ_WRITE_PERSISTENT}
!      *         but this channel was not opened for both reading and writing
       *
       * @throws IllegalArgumentException
       *         If the preconditions on the parameters do not hold
       *
       * @throws IOException