This problem is most likely a bug in the implementation of the non-graceful in the recovery of server in WFLY23, when the parameter of the --graceful-startup is not set up, the default behavior should be the same as in the earlier version (WFLY22), because the default value is true. The test is written in a way that this change should not affect it, but evidently, it does.

When the server is suspended and then is resume it will not complete the execution of the job and fails with HTTP 500 Internal Server Error.

A probable source of this issue is this WFLY commit https://github.com/wildfly/wildfly/pull/13907/