Need Vertica JDBC code for tweaking

Hi All,
Is there a possible, I can get Vertica JDBC code base for tweaking some code changes.
I am working on optimizing the data transfer between spark dataframes and vertica using jdbc.
I can de-compile the jar and flatten the project structure, but this will lead to much more time in fixing the unknown issues caused to de-compliation.
Any Git repo, where this source code is shared ?
Not sure, if this code is meant to be shared, but if it is, please help with the information accordingly.