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Yeah, that makes much more sense to me - appreciated. :)

catch (BadLocationException exception) {
JOptionPane.showMessageDialog(null, "o_O an error that can't happen just happened", "Impossible Error", JOptionPane.ERROR_MESSAGE);
}


Adding code...

JTextArea textArea = new JTextArea();

highlightAll.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
textArea.selectAll();
Highlighter highlighter =...