What is the difference in ACF2 between LIST() and LIST( )?

Products

• ACF2
• ACF2 - z/OS
• ACF2 - MISC

Issue/Introduction

How does LIST UID(      ) differentiate between blank and null?  There is a different list of logonids for LIST UID() than for LIST UID( ).

Environment

Release : 16.0

Component : CA ACF2 for z/OS

Resolution

The LIST UID(  is looking to match the first character with the UID string, and all other characters are masked.  LIST UID() is the same as LIST UID(*), so all logonids will be returned.  While LIST UID( ) will only return a logonid if the first character in the UID string contains a space, or x'40' in EBCDIC.