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

*** 1056,1071 ****
      /**
       * Requests that the file or directory denoted by this abstract
       * pathname be deleted when the virtual machine terminates.
       * Files (or directories) are deleted in the reverse order that
       * they are registered. Invoking this method to delete a file or
!      * directory that is already registered for deletion has no effect.
       * Deletion will be attempted only for normal termination of the
       * virtual machine, as defined by the Java Language Specification.
       *
!      * <p> Once deletion has been requested, it is not possible to cancel the
!      * request.  This method should therefore be used with care.
       *
       * <P>
       * Note: this method should <i>not</i> be used for file-locking, as
       * the resulting protocol cannot be made to work reliably. The
       * {@link java.nio.channels.FileLock FileLock}
--- 1056,1076 ----
      /**
       * Requests that the file or directory denoted by this abstract
       * pathname be deleted when the virtual machine terminates.
       * Files (or directories) are deleted in the reverse order that
       * they are registered. Invoking this method to delete a file or
!      * directory that is already registered for deletion causes its
!      * deletion registration reference count to be incremented.
       * Deletion will be attempted only for normal termination of the
       * virtual machine, as defined by the Java Language Specification.
       *
!      * <p>
!      * An invocation of this method may be cancelled by invoking
!      * {@link #cancelDeleteOnExit()}. There must be at least as many
!      * cancellation as deletion requests however to unregister the file
!      * or directory completely from eventual deletion. Cancellation does
!      * not affect the order of deletion.
       *
       * <P>
       * Note: this method should <i>not</i> be used for file-locking, as
       * the resulting protocol cannot be made to work reliably. The
       * {@link java.nio.channels.FileLock FileLock}
*** 1074,1083 ****
--- 1079,1089 ----
       * @throws  SecurityException
       *          If a security manager exists and its {@link
       *          java.lang.SecurityManager#checkDelete} method denies
       *          delete access to the file
       *
+      * @see #cancelDeleteOnExit
       * @see #delete
       *
       * @since 1.2
       */
      public void deleteOnExit() {
*** 1090,1099 ****
--- 1096,1139 ----
          }
          DeleteOnExitHook.add(path);
      }
  
      /**
+      * Cancels a request that the file or directory denoted by this abstract
+      * pathname be deleted when the virtual machine terminates. Invoking this
+      * method for a file or directory that is not already registered for
+      * deletion has no effect. This method will cause the deletion registration
+      * reference count of a registered file or directory to be decremented but
+      * will not unregister it unless that count reaches zero.
+      *
+      * <p>
+      * If a file or directory is registered for deletion but is explicitly
+      * deleted before normal termination of the virtual machine, then it is
+      * recommended to call this method to free resources used to track the
+      * file for deletion.
+      *
+      * @throws  SecurityException
+      *          If a security manager exists and its {@link
+      *          java.lang.SecurityManager#checkDelete} method denies
+      *          delete access to the file
+      *
+      * @see #deleteOnExit
+      *
+      * @since 14
+      */
+     public void cancelDeleteOnExit() {
+         SecurityManager security = System.getSecurityManager();
+         if (security != null) {
+             security.checkDelete(path);
+         }
+         if (isInvalid()) {
+             return;
+         }
+         DeleteOnExitHook.remove(path);
+     }
+ 
+     /**
       * Returns an array of strings naming the files and directories in the
       * directory denoted by this abstract pathname.
       *
       * <p> If this abstract pathname does not denote a directory, then this
       * method returns {@code null}.  Otherwise an array of strings is