Method getChannel

app/src/main/java/com/sun/mail/imap/IMAPFolder.java:3455–3457

Return the SocketChannel for this connection, if any, for use in IdleManager.

()

     * in IdleManager.
     */
    SocketChannel getChannel() {
	return protocol != null ? protocol.getChannel() : null;
    }

    /**
     * Send the IMAP ID command (if supported by the server) and return