domDb.flush();
				public Object start() {					try {						domDb.remove(idx, null);						domDb.flush();					} catch (BTreeException e) {			            LOG.warn("start() - " + "error while removing doc", e);					} catch (DBException e) {			            LOG.warn("start() - " + "error while removing doc", e);					} catch (IOException e) {			            LOG.warn("start() - " + "error while removing doc", e);					} catch (TerminatedException e) {			            LOG.warn("method terminated", e);			        }					return null;				}