| class  | RTXColumnRuntimeException | Runtime Exception related to an RTXColumn. | 
| class  | RTXFileNotFoundRuntimeException | Input file not found. | 
| class  | RTXInRowDataRuntimeException | Attempt to modify metadata (for example columns) when row data has started. | 
| class  | RTXIteratorRuntimeException | Error while iterating through data. | 
| class  | RTXMetadataReadOnlyRuntimeException | Attempt was made to modify read only metadata. | 
| class  | RTXMetadataRuntimeException | Error manipulating metadata. | 
| class  | RTXParameterDirectionRuntimeException | Parameter direction and method call don't match, for example calling getRTXWriter() on an In parameter. | 
| class  | RTXParameterObjectVisibilityRuntimeException | A model object that should be visible is not, for example the Partition GLOBAL or the format XML. | 
| class  | RTXParameterValueRuntimeException | Exception related to a parameter value, for example parsing the In or Out value of a JobParameter. |