public void applyChanges() { OntologyPreferences prefs = OntologyPreferences.getInstance(); try { prefs.setBaseURI(new URI(textField.getText())); prefs.setIncludeYear(yearCheckBox.isSelected()); prefs.setIncludeMonth(monthCheckBox.isSelected()); prefs.setIncludeDay(dayCheckBox.isSelected()); } catch (URISyntaxException e) { UIHelper uiHelper = new UIHelper(getOWLEditorKit()); uiHelper.showOptionPane( "Error", "Couldn't set base URI: " + e.getMessage(), JOptionPane.OK_OPTION, JOptionPane.ERROR_MESSAGE); } }