What does ''Certified JVM'' mean in the Derby System Requirements statement?
Variations of the following Derby System Requirements statement can be found in the Derby documentation and website but the term Certified JVM is not defined:
Derby is a database engine written completely in Java; it will run in any certified Java Virtual Machine (JVM).
I interpret Certified JVM as meaning a JVM that passed the TCKs for the platform and so can use a coffee cup logo.
Note that Derby may run fine on JVMs that have not run platform TCKs and/or do not display the coffee cup logo.