The JXTreeTable has known issues with sorting and filtering. As such the
methods, setSortable and setFilters are no-ops. This dissuades users from
attempting sorting and filtering solutions, since they are required to modify
the JXTreeTable source.
I suggest adding client properties that will enable the use of the inherited
sorting and filtering. I will be easier for users to work with the inherited
code and also (hopefully) make it easier for users to come up with solutions to
the current problems.
I'd recommend "enable-super-sorting" and "enable-super-filtering".