As far back as 2012 and 2013 there was talk of removing the requirement for Java from LibreOffice Base. See:
Oracle’s Java has widely been recognized as essentially malware and a significant security risk. Oracle pushes out frequent security updates, as many as one every few weeks, and each tries to install extra unwanted software. Java, like Adobe’s Flash, has been largely abandoned for being more trouble than it’s worth. So why, after 4+ years of complaints and requests, does LibreOffice Base still require it? Is there a time frame to finally be rid of requiring this obnoxious nefarious malware as a dependency?
One of the main appeals of open source software is not being at the mercy of commercial companies. Yet Oracle is the very definition of corporate greed and LibreOffice seems unconcerned about requiring Oracle’s malware as a prerequisite for using LibreOffice Base. This is very disappointing as many recommend against installing the JRE which essentially means not using LibreOffice Base either.