Fix NullPointerException

✅ Solution

A NullPointerException in Keycloak often arises from accessing an object or variable that hasn't been initialized or is unexpectedly null during runtime operations like database migrations or JWT processing. Ensure all potentially null objects are initialized properly or implement null checks (e.g., using `if (object != null)`) before attempting to access their methods or properties to prevent the error. Review your code for instances where objects might be retrieved from a database or external source but could be missing and add appropriate handling for these cases.