When the application is stopped using a script, kill -9 command, JWP force writes trace logs.
Using the command kill -9 pid to stop the application
Release : 12.2
Component : AUTOMATION ENGINE
As the JWP/JCP are multi-threaded any KILL -9 will cause error messages as some thread might not be able to shut down normal.
KILL -TERM is the one way - but the user must wait till all threads are finished with their transactions - this can take some time.
use the AWI -> administration view or script command to shutdown the process - but depending on the transactions this might take some time as the KILL -TERM.