The best open source survey and forms system.
Mybatis common mapper, easy to use
Database file mapping names to records, implementing a file-system
Heap organised database service (Java library)
a set of foundation classes for database engines
Active, high-performance open source database middleware
Database explorer to MySQL, Oracle, Sybase & others. Source maker JSF.
Java Redis Client GUI Tool
Simple Java ORM
Pluggable data administration UI interface for Java web applications
Intra-office paging system