Hibernate's core Object/Relational Mapping functionality
MyBatis SQL mapper framework for Java
JSqlParser parses an SQL statement and translate it into a hierarchy of Java classes. The generated hierarchy can be navigated using the Visitor Pattern
jSQL Injection is a Java application for automatic SQL database injection.
CrateDB is a distributed SQL database that makes it simple to store and analyze massive amounts of data in real-time. Built on top of Lucene.