Tabs in JOptionPane window

From: - Steve - (sevans_at_foundation.sdsu.edu)
Date: 10/26/03 

Date: Sat, 25 Oct 2003 19:43:32 -0700

Example

String testString = "Testing \t tabs";

JOptionPane.showMessageDialog(null, testString, "TEST",
JOptionPane.INFORMATION_MESSAGE);

Instead of getting the output "Testing tabs", I get something more like
"Testing | tabs" (although it isn't a pipe symbol, it's something unusual).

What do you need to do to get tabs to work with JOptionPane windows?