So what does this imply for me? Base (the database component) relies completely on Java technologies to run, but other programs (like Writer, Calc and Impress) only need Java for special functionality. If you do not require these features, then you do not need to Java installed for running. Furthermore some wizards rely on Java technology. Java is mainly required for the HSQLDB database engine (used by our database product Base) and to make use of accessibility and assistive technologies. Java is required for complete functionality. By default the installer will install this additional piece of software as well. ' The Java Runtime Engine (JRE) is required for the Base ( database) component of as well as several other features.