The definitive JNA reference (including an overview and usage details) is in the JavaDoc. Please read the overview. Questions, comments, or exploratory conversations should begin on the mailing list, ...
The JDBC driver version 5.x is compatible with Hazelcast version 5.x. For Hazelcast 4.2, use the JDBC Driver 4.2. The open source one isn't able to connect to Hazelcast EE clusters, but has an open ...