SymmetricDS is web-enabled, database independent, data synchronization/replication software. It uses web and database technologies to replicate tables between relational databases in near real time. The software was designed to scale for a large number of databases, work across low-bandwidth connections, and withstand periods of network outage.
log4jdbc is a JDBC driver that can log SQL and/or JDBC calls (and optionally SQL timing information) for other jdbc drivers using the Simple Logging Facade For Java (SLF4J) logging system.
LIMBAS is a web client/server application allowing you to develop application quickly without programming. This, only by the use of tables and forms and other modules like workflow engine, user management, report editor, file manager or soap interface.
An outstanding feature is complete use with an Internet-Browser without installations, Plugins or other components on the client.