code: public int getTotalFree(){
  		int total=0;
  		for (int i=0; i < this.partitionCount && this.partitions[i] != null ; i++){
  			total+=this.partitions[i].getAvailableConnections();
  		}
  		return total;
  	}
docs: Return the number of free connections available to an application right away (excluding connections that can be
  created dynamically)
  @return number of free connections