The operating system issues messages concomitant to conditions that occur throughout TDP operation. They require no action and do not impact TDP. They are described here to alleviate any possible concern.
If TDP terminate abnormally when using NPs, the following z/OS message is issued:
BPXP0018I THREAD ..., IN PROCES ..., ENDED WITHOUT BEING UNDUBBED ...
This message must be ignored: it simply reflects that the task was using the system IP stack but ended without formally ending stack use - as would be expected in an abnormal termination.
When TDP terminates, the following MVS message is issued,
IEF352I ADDRESS SPACE UNAVAILABLE
This message should be ignored: it reflects that TDP used MVS cross-memory services, rendering the Address-Space Id (ASID) unavailable for use by future address spaces.