Processing-unsuccessful; white screen

import processing.serial.*;

PFont Consolas;
String systMessage="";
char confChar=7;
Serial commsPort;
int avIndex=1;
int indent=25;
int largeIndent=120;
int scanDelay=690;
int time;
int wait=690;
boolean selectionComplete=false;
boolean displayDefaultScanMsg=true;

void setup()
{
  size(800,600);
  Consolas=createFont("Consolas",17,true);
  background(0);
}

void draw()
{
  time=millis();
  commsPort=new Serial(this,Serial.list()[avIndex],38400);
  while(displayDefaultScanMsg==true)
  {
    text("Scanning...",largeIndent,40);
  }
  text(systMessage+(frameCount/10%2==0?"_":""),largeIndent,60);
  delay(40);
  portSelect();
}

  void portSelect()
  {
    if(millis()-time>=wait)
    {
      for(displayDefaultScanMsg=true; commsPort.available()<=0; avIndex++)
      {
        for(displayDefaultScanMsg=false; commsPort.read()!=confChar; avIndex++)
        {
          commsPort.bufferUntil(confChar);
          systMessage="Selection complete!";
          commsPort=new Serial(this,Serial.list()[avIndex],38400);
          commsPort.write(confChar);
          selectionComplete=true;
        }
      }
    }
  }