• I created a databricks JDBC connection class following the code ##https://docs.databricks.com/en/integrations/jdbc/authentication.htm

I observed that after a number of execute SQL calls , there were 27000 instances of com.databricks.client.jdbc42.internal.apache.http.impl.conn.basichttpclientconnectionmanager in heap dump.

I crossed checked & found I always close all the resources after their use vanishes 

Maven dependency version 2.6.38