Fix IllegalStateException

✅ Solution

IllegalStateException in Keycloak often arises when attempting to use a KeycloakSession or related object (like EntityManager) after it has been closed or is no longer valid within the current transaction. To resolve this, ensure KeycloakSession and related objects are used only within their intended scope (usually within a transaction boundary) and are properly closed or detached when no longer needed. Leverage try-with-resources or explicitly commit/rollback transactions to guarantee proper resource management.