code: public synchronized void clear() {
  		try {
  			this.storage.close();
  			this.storage = provider.createStorage();
  		} catch (IOException e) {
  			// major fuckup
  			e.printStackTrace();
  		}
  		this.size = 0;
  	}
docs: /* (non-Javadoc)
  @see java.util.Map#clear()