Remove reference to long dead Java.net maven repository. (#2159)
Remove reference to long dead Java.net maven repository. (#2159)

Co-authored-by: Tijs Rademakers <4adbd91a0d6215d917dd355c5866824bd39eb153@gmail.com>

dbmalkovsky/flowable-engine,flowable/flowable-engine,flowable/flowable-engine,flowable/flowable-engine,dbmalkovsky/flowable-engine,paulstapleton/flowable-engine,flowable/flowable-engine,paulstapleton/flowable-engine,paulstapleton/flowable-engine,dbmalkovsky/flowable-engine,paulstapleton/flowable-engine,dbmalkovsky/flowable-engine