src/share/classes/java/nio/channels/SelectionKey.java
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@@ -248,10 +248,18 @@
* 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 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>