JOptionPane blank message after first time


I have a problem getting this to work. It's in the update() method of an observer, and I want to
see this JOptionPane every update:

JOptionPane.showMessageDialog(null, result.toString(), "Result", JOptionPane.INFORMATION_MESSAGE);

It shows fine the first time, but after the first time, I just see the JOptionPane's frame, and it will
paint the button if I mouse over it, but no message. What could be wrong? the "result" object isn't null
or anything like that.

Makes no difference if I put a container as the first argument.

.

Quantcast