@DeleteOperation
    @Operation(summary = "Clear loaded identity providers and rebuild from CAS configuration or other sources.")
    public Map<String, Map<String, Object>> reload() {
        val currentClients = clientFactory.getObject().rebuild();
        return buildClientMap(currentClients);
    }
Reload the identity providers and rebuild from scratch.

@return the identity providers.
support/cas-server-support-pac4j-core-clients/src/main/java/org/apereo/cas/support/pac4j/authentication/clients/DelegatedClientsEndpoint.java