iModelFactory - Extending an Existing Model with New Fields
The purpose of this page is to illustrate to how use the iModelFactory to extend an existing model with new fields. The community helped me solve this challenge; therefore, I left the solution in the community.
https://groups.google.com/d/msg/idempiere/kPGbrO0WTjE/-tCuduy9KBEJ
The old way of loading a model does not work with IModelFactory. Instead, you should use the following style (offered as an example):
MRMALine rLine = (MRMALine) MTable.get(getCtx(), MRMALine.Table_ID).getPO(sLine.getM_RMALine_ID(), get_TrxName());
Other References: