Get username by id

Hello, i am looking a java or a flow to help to get the username by the id, i try several way but i don’t know how to do it. On the integration server i create i java i just need how to implement a method to get the solution or if there any service in the software ag suit to help. Thanks you.

Hi,

Can you please elaborate as to what are you intending to do as i am not clear from your description?