Apache IoTDB
A powerful, cross platform, SQL database system
A Java SQL client for any JDBC compliant database
Relational Database
An object relational-mapping (ORM) library for Java
a set of foundation classes for database engines
Database Replication, Filtered Synchronization, and Transformation
Toolkit for working with and mapping geospatial data
A generator of DTO, Model, and DAO classes to access relational DB
Database Subsetter and Relational Data Browser
A Database System for Metamodeling and Method Engineering
Java persistence using JDO, JPA or REST
Relative Examples and Resources of iBoxDB, etc...
LSJ-Server-Terra (Java Multipurpose Sever connected with MariaDB)
ORBIT : Operating Business Intelligence Tool
Automated tests with databases: prep, verify, restore tables
DAO for all database server types with the Java POJO code generator
Financial program