Please pay attention when use jdbc mysql driver with server-side prepared statements, there is memory leak in it. (https://bugs.mysql.com/bug.php?id=87429) Our team prepared custom build with fix for that driver, it is available in bug’s comment.

How can I get this fix while using maven? Or do I not have to worry about it?

Only if you will put patched jar in local folder and then target it as dependency.