Graphical Program With Several Label Objects - How To Use Infinite Loops

I'm writing a graphical program with several Label objects. One of them is supposed to constantly change color. I tried to do it with while loop like this:

while (true) {label1.setColor(Color.blue); pause (80); label1.setColor(Color.red); pause (80);}

However, the rest of the code (after the loop) is never reached because the loop never ends. Is it possible to use infinite loop like this? And, is there any other way to handle permanent processes that are supposed to run as long as the program is running (like, in this case, blinking Label)?