* @param item the character mapping item to delete
     */
    @Override
    public synchronized void delete(final CharMappingItem item) {
        final CharMappingItem mappingItem = item;
        mappingItem.setNewInputs(StringUtil.EMPTY_STRINGS);
        mappingItem.setNewOutput(StringUtil.EMPTY);
        try (MappingUpdater updater = new MappingUpdater(item)) {
            reload(updater);
        }
    }

    /**