How right use serial.read()?

[Tiago Martins]

Hello everyone, I'm using PI4J at my projects for sometime now and the serial listener always made it. 

But now I have to use Serial.read(), and when I do it the program get stuck.

When I write to the serialcomm, the device send me an ACK. After the device finishes the process it sends the status, but the listener don't show it. Only shows after I user the serial.read(), but then it stucks

Using it inside a thread solves the problem of been stuck, the first time it's ok. The problem is when I start it again, the serial read get all confused and sometimes doesn't show anything.

Can anybody help me?

public void DEP_COMP_PI4J() throws IllegalStateException, IOException{
new Thread() {
 @Override
 public void run() {
final Serial serial = SerialFactory.createInstance();
   serial.addListener(new SerialDataEventListener() {
            @Override
            public void dataReceived(SerialDataEvent event) {
                 try {                    
                    System.out.println("[HEX DATA]   " + event.getHexByteString());                              
                    Recebido +=","+event.getHexByteString();
                   
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        });
      try{
          System.out.print("create buffer\n");
            byte[] buffAbre = new byte[4];
                   buffAbre[0] = 0x02;
                   buffAbre[1] = 0x63;
                   buffAbre[2] = 0x03;
                   buffAbre[3] = 0x62;
            serial.open("/dev/serial0", 9600,8,1,1,0);
            System.out.println("serial open ?"+ serial.isOpen()+"\n");
            System.out.println("will send buffer\n");                  
            serial.write(buffAbre);
            System.out.println("sent buffer:\n ");
            Thread.sleep(7000); //Time to the device finish the process  
            System.out.println("Sleep:\n ");
            serial.read();      
         }
         catch(Exception Ex){
                            System.out.println(Ex);
                            System.out.println("Remove Listener");
                            serial.removeListener();            
                            }
       
 System.out.println(Ex);
 }
 }.start();
}

[Tiago Martins]

Sorry to bother the community, solved it. Just put a 10 seconds sleep, then the listenet could read.