Address already in use

[DaAwesomeP]

I am trying to connect to an OLA instance on my machine. I get the following error when the sketch starts:

Nov 27, 2017 3:46:13 PM artnet4j.ArtNet <init>
INFO: Art-Net v0001-20091119
java.net.BindException: Address already in use (Bind failed)
	at java.net.PlainDatagramSocketImpl.bind0(Native Method)
	at java.net.AbstractPlainDatagramSocketImpl.bind(AbstractPlainDatagramSocketImpl.java:93)
	at java.net.DatagramSocket.bind(DatagramSocket.java:392)
	at java.net.DatagramSocket.<init>(DatagramSocket.java:242)
	at java.net.DatagramSocket.<init>(DatagramSocket.java:299)
	at java.net.DatagramSocket.<init>(DatagramSocket.java:271)
	at artnet4j.ArtNetServer.start(ArtNetServer.java:148)
	at artnet4j.ArtNet.start(ArtNet.java:102)
	at artnetP5.ArtnetP5.setup(ArtnetP5.java:41)
	at artnetP5.ArtnetP5.<init>(ArtnetP5.java:33)
	at mysketch.setup(mysketch.java:53)
	at processing.core.PApplet.handleDraw(PApplet.java:2412)
	at processing.awt.PSurfaceAWT$12.callDraw(PSurfaceAWT.java:1557)
	at processing.core.PSurfaceNone$AnimationThread.run(PSurfaceNone.java:316)

And then this every time my draw() loops:

node not found: 127.0.0.1

I have the same result if I use the local network IP and not the loopback. Here is my sketch:

int FPS = 1;

import artnetP5.*;
ArtnetP5 artnet;

void setup() {
  frameRate(FPS);
  size(300, 1, JAVA2D);

  artnet = new ArtnetP5();
}

int test = 255;

void draw() {
  fill(test);
  noStroke();
  rect(0,0,300,1);
  test--;
  if (test < 0) test = 255;
  
  sendPixels();
}

void sendPixels() {
  loadPixels();
  artnet.send(pixels, "127.0.0.1");
  updatePixels();
}

[timrolls]

OLA binds to the device. You can't use OLA with another application using that device on the same machine.

[DaAwesomeP]

@timrolls I've done this many times before in other applications. artnetP5 shouldn't be listening, it should be connecting to OLA.