You can create replication definitions for Java columns using create replication definition and the rawobject and rawobject in row datatypes.
rawobject and rawobject in row values:
create replication definition p1 with primary at ds.db with all tables name t (c1 int, c2 rawobject null, c3 rawobject not null, c4 rawobject in row) primary key (c1) replicate_if_changed (c2) always_replicate (c3)
Columns c2 and c3 are rawobject columns; they have replication and null status. Column c4 is a rawobject in row column; it does not have replication or null status. Columns c2, c3, and c4 are neither part of the primary key nor are they searchable.