src/share/classes/java/nio/channels/SelectionKey.java

*** 248,257 ****
--- 248,265 ----
       * href="Selector.html#selop">selection operation</a>.  If the selector
       * detects that the corresponding socket channel is ready to complete its
       * connection sequence, or has an error pending, then it will add
       * <tt>OP_CONNECT</tt> to the key's ready set and add the key to its
       * selected-key&nbsp;set.  </p>
+      *
+      * <p>
+      * Note an application should not use Selector's select() method to check
+      * <tt>OP_CONNECT</tt> again, once a channel is already connected. Please
+      * see {@link  java.nio.channels.Selector#select() Selector.select()} for
+      * more detail.
+      * </p>
+      *
       */
      public static final int OP_CONNECT = 1 << 3;
  
      /**
       * Operation-set bit for socket-accept operations.  </p>