question: public final ConnectionState newInput ( ) throws IOException { if ( in . hasRemaining ( ) ) { throw new RuntimeException ( "data remaining in input" ) ; } in . clear ( ) ; int r = ch . read ( in ) ; if ( r == - 1 ) throw new IOException ( "connection closed on client side" ) ; if ( r == 0 ) return ConnectionState . SELECTOR_WAIT_FOR_NEW_INPUT ; in . flip ( ) ; return newRequestChunk ( ) ; }
target:  New data available for the connection.