Bug 315281 update copyrights for 3.6
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/MarkerContentGenerator.java
}
	/**
	 * 
	 */
	private void writeFiltersPreference() {
		XMLMemento memento = XMLMemento.createWriteRoot(TAG_FILTERS_SECTION);
		writeFiltersSettings(memento);
		StringWriter writer = new StringWriter();
		try {
			memento.save(writer);
		} catch (IOException e) {
			IDEWorkbenchPlugin.getDefault().getLog().log(Util.errorStatus(e));
		}
		
		IDEWorkbenchPlugin.getDefault().getPreferenceStore().putValue(
				getMementoPreferenceName(),
				writer.toString());
		IDEWorkbenchPlugin.getDefault().savePluginPreferences();
	}
	/**
	 * Create a preference listener for any preference updates.
	 */
	private void initializePreferenceListener() {
		if (filterPreferenceListener == null) {
			filterPreferenceListener = new IPropertyChangeListener() {
				public void propertyChange(PropertyChangeEvent event) {
					if (event.getProperty().equals(getMementoPreferenceName())) {
						rebuildFilters();
					}
				}