[orientdb] orient addCluster throws UnsupportedOperationException

[b g]

I created a project with an implementation of OClusterSelectionStrategy, I
had issues getting the jar to load (separate issue) so I added my class
into the orientdb-core project I checked out form github. I load the class
according to https://orientdb.com/docs/2.2/Cluster-Selection.html - and it
shows in the console.sh when I use "info class messages" - messages is my
class... My customization is to create a new cluster using
OClass::addCluster(String) - but when I debug into this method, I end up in
class OImmutableClass implements OClass - which throws an
UnsupportedOperationException... How can I have my class not be an
OImmutableClass? Anyone have success with adding a new cluster for their
class - any hints? Thanks!