chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
chooser.setDialogTitle(title);
chooser.setAcceptAllFileFilterUsed(true);
if (extension != null && fileType != null) {
chooser.setFileFilter(new ExtensionFileFilter(extension, fileType));
} else {
chooser.setFileFilter(null);
}
if (defaultFile != null) {