jdk/src/share/classes/java/nio/channels/FileLock.java

rev 2483 : 6911258: Project Coin: Add essential API support for Automatic Resource Management (ARM) blocks
6911261: Project Coin: Retrofit Automatic Resource Management (ARM) support onto platform APIs
6962571: Infinite loop in printing out Throwable stack traces with circular references
Reviewed-by: darcy, alanb
Contributed-by: jjb@google.com

*** 114,124 ****
   * @author Mark Reinhold
   * @author JSR-51 Expert Group
   * @since 1.4
   */
  
! public abstract class FileLock {
  
      private final Channel channel;
      private final long position;
      private final long size;
      private final boolean shared;
--- 114,124 ----
   * @author Mark Reinhold
   * @author JSR-51 Expert Group
   * @since 1.4
   */
  
! public abstract class FileLock implements AutoCloseable {
  
      private final Channel channel;
      private final long position;
      private final long size;
      private final boolean shared;
*** 297,306 ****
--- 297,317 ----
       *          If an I/O error occurs
       */
      public abstract void release() throws IOException;
  
      /**
+      * This method invokes the {@link #release} method. It was added
+      * to the class so that it could be used in conjunction with the
+      * automatic resource management block construct.
+      *
+      * @since 1.7
+      */
+     public final void close() throws IOException {
+         release();
+     }
+ 
+     /**
       * Returns a string describing the range, type, and validity of this lock.
       *
       * @return  A descriptive string
       */
      public final String toString() {