Upgrade Optaplanner to version 8.4.0
Upgrade Optaplanner to version 8.4.0

adessaigne/camel,nikhilvibhav/camel,christophd/camel,adessaigne/camel,tadayosi/camel,christophd/camel,adessaigne/camel,christophd/camel,apache/camel,pax95/camel,cunningt/camel,cunningt/camel,cunningt/camel,apache/camel,cunningt/camel,pax95/camel,tadayosi/camel,tadayosi/camel,cunningt/camel,tdiesler/camel,apache/camel,tdiesler/camel,adessaigne/camel,christophd/camel,adessaigne/camel,pax95/camel,pax95/camel,apache/camel,pax95/camel,christophd/camel,tadayosi/camel,tdiesler/camel,apache/camel,tadayosi/camel,tdiesler/camel,adessaigne/camel,nikhilvibhav/camel,cunningt/camel,nikhilvibhav/camel,pax95/camel,nikhilvibhav/camel,tdiesler/camel,apache/camel,christophd/camel,tdiesler/camel,tadayosi/camel