PostgreSQL JDBC Driver Postgresql

HikariCP is a 'zero-overhead' production ready JDBC connection pool.

The MyBatis SQL mapper framework makes it easier to use a relational database with object-oriented applications. MyBatis couples objects with stored procedures or SQL statements using a XML descriptor or annotations.

Spring Data module for JPA repositories.

The web layer of open mrs

Activiti :: Engine

Pure functional JDBC layer for Scala.

Connect to the PostgreSQL database via JDBC

Nutz, which is a collections of lightweight frameworks, each of them can be used independently

Alfresco Repository

Spring Framework on Google Cloud