docs: protected void postConnection(ConnectionHandle handle, long statsObtainTime){
  
  		handle.renewConnection(); // mark it as being logically "open"
  
  		// Give an application a chance to do something with it.
  		if (handle.getConnectionHook() != null){
  			handle.getConnectionHook().onCheckOut(handle);
  		}
  
  		if (this.pool.closeConnectionWatch){ // a debugging tool
  			this.pool.watchConnection(handle);
  		}
  
  		if (this.pool.statisticsEnabled){
  			this.pool.statistics.addCumulativeConnectionWaitTime(System.nanoTime()-statsObtainTime);
  		}
  	}