I have a processing program reading data from the arduino, what i want is the ability to disconnect and reconnect the usb port and have the processing sketch begin reading again. is this possible?

i am using 2 way communication between arduino and processing, the arduino is constantly sending data to processing, and serialevent is called when the line feed character is found. it then stores the parts of the string received in arrays.

when i try to send data to the arduino, i get the error

1. error, disabling serialEvent() for //./COM4
2. java.lang.reflect.InvocationTargetException
3.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
4.     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
5.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
6.     at java.lang.reflect.Method.invoke(Method.java:597)
7.     at processing.serial.Serial.serialEvent(Unknown Source)
8.     at gnu.io.RXTXPort.sendEvent(RXTXPort.java:732)
9.     at gnu.io.RXTXPort.eventLoop(Native Method)
10.     at gnu.io.RXTXPort$MonitorThread.run(RXTXPort.java:1575)
11. Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
12.     at the_GUI_bro_addbuttons_22_8.serialEvent(the_GUI_bro_addbuttons_22_8.java:286)
13.     ... 8 more

this is the serialevent code

1. void serialEvent(Serial p) {
2.   inString = (p.readString());
3.   if (inString!= null){
4.     float sensorValues[] = float(split(inString, ','));
5.     pitch_comp  = sensorValues[0];
6.     roll_comp   = sensorValues[1];
7.     pitch_d     = sensorValues[2];
8.     roll_d      = sensorValues[3];
9.     theta_d     = sensorValues[4];
10.     rrate       = sensorValues[5];
11.     prate       = sensorValues[6];
12.     boardTime   = sensorValues[7];
13.     dt          = sensorValues[8];
14.     alphaa      = sensorValues[9];
15.   }
16.   rrateInt+=rrate*(dt/1000);
17.   prateInt+=prate*(dt/1000);
18.   updateInputArrays  ();
19. }

and this is the code that sends serial to the arduino

1. void mouseClicked(){
2.   //dragging set point
3.   if (mouseX<(plotX+plotSize)&&mouseX>plotX&&mouseY<(plotY+plotSize)&&mouseY>plotY){
4.   rollSet=(mouseX-(plotX+plotSize/2))*.3;//((mouseX-150)/300)*45;
5.   pitchSet=(mouseY-(plotY+plotSize/2))*.3;//((mouseY-100)/300)*45;
6.  println(rollSet + "    "+pitchSet + " sending setpos");
7.   myPort.write("p" + pitchSet +"#");
8.  myPort.write("r" + rollSet +"#");
9.   }

it sends 2 values corresponding with where the mouse was clicked

when i send those exact commands through terminal, while the arduino is sending data, it works fine.

what am i doing wrong?

when the error comes up, processing stops reading data in but the serial write will keep working and the arduino will still recieve the data...