code: public void clear() {
  	new ByteArrayList(this.state).fillFromToWith(0, this.state.length-1, FREE);
  	//new DoubleArrayList(values).fillFromToWith(0, state.length-1, 0); // delta
  	
  	/*
  	if (debug) {
  		for (int i=table.length; --i >= 0; ) {
  		    state[i] = FREE;
  		    table[i]= Integer.MAX_VALUE;
  		    values[i]= Double.NaN;
  		}
  	}
  	*/
  	
  	this.distinct = 0;
  	this.freeEntries = table.length; // delta
  	trimToSize();
  }
docs: Removes all (key,value) associations from the receiver.
  Implicitly calls <tt>trimToSize()</tt>.