Pb with the serial port

Question

hello
I'm making a programme that deal with the serial port
when i press on the button sennd of my serial device ,I get nothing .
infact i have to press about 4 times to get the output
I will get 4 outputs result at once
I believe that my problem come from
fluxLecture.readLine();I think that my machine is not sending the end of line
what is strange that the "while" will stop but it wont execute the next line
System.out.println("I'm ouside ");any idea ?????
thank you in advance
try {
               fluxLecture =
                    new BufferedReader(
                         new InputStreamReader(serialPort.getInputStream()));
          } catch (IOException e) {
          }then somewere else in my class I use this
public void serialEvent(SerialPortEvent event) {
          switch (event.getEventType()) {
               case SerialPortEvent.BI :
               case SerialPortEvent.OE :
               case SerialPortEvent.FE :
               case SerialPortEvent.PE :
               case SerialPortEvent.CD :
               case SerialPortEvent.CTS :
               case SerialPortEvent.DSR :
               case SerialPortEvent.RI :
               case SerialPortEvent.OUTPUT_BUFFER_EMPTY :
                    break;
               case SerialPortEvent.DATA_AVAILABLE :
                    try {
                                    while(fluxLecture.ready())
                                        result_output = result_output +" "+ (String) fluxLecture.readLine();
System.out.println("I'm inside");
System.out.println("I'm outside");

Answer 1

sorry for being late but as I have alot of work ,so ......
Are you using package RXTX or javax.comm?javax.comm
I tried to chek if the readline is null ,the answer is no
so my while stop but does not execute the next line
strange ????