Keycloak-admin-client hangs after 10 HTTP 409 responses

Hi,

I’ve created a small test project:

The project uses the “keycloak-admin-client” maven plugin (v. 17.0.1)
which connects to a keycloak server(v. 17.0.1) running in docker.

The output of the code is the following:

Creating users
a: 201
b: 201
c: 201
d: 201
e: 201
f: 201
g: 201
h: 201
i: 201
j: 201
k: 201
Creating users
a: 409
b: 409
c: 409
d: 409
e: 409
f: 409
g: 409
h: 409
i: 409
j: 409

After the last line the program hangs forever.
I wonder what the reason is?

Thank you!
Peter