H2 is an embeddable RDBMS written in Java
SQLite JDBC Driver
Postgresql JDBC Driver
Database migrations made easy
Centralize, transform and stash your data
A free, open source, powerful tool for working with messy data
Conductor is a microservices orchestration engine
Apache IoTDB
A powerful, cross platform, SQL database system
An object relational-mapping (ORM) library for Java
Toolkit for working with and mapping geospatial data
Database Replication, Filtered Synchronization, and Transformation
A Database System for Metamodeling and Method Engineering
Java Application Framework
eXist-db is a feature rich Open Source native XML database
Rel is a database management system (DBMS) that implements Tutorial D.
Relational database replication tool based on XML Schema
a set of foundation classes for database engines
Java database mapper