ALWNULL attribute does not match system description of file %1. Attribute accepted.
10
Cause . . . . . : The file was created without the DDS keyword ALWNULL.
Recovery . . . : If you specified ALWNULL because you want to handle null fields, then either re-create the file with this keyword in the DDS, or remove the ALWNULL attribute from the implementer-name in the program. Then, recompile the program. Removing the ALWNULL attribute will prevent the compiler from generating unnecessary NULL maps.