Issue in KeyCloak SPI Docker - TransformAccessToken Getting Called Multiple Times

Extending the server
1

Wrt to our application, we are using the Keycloak 15.1.0 docker based implementation.
Extended SPI RemoteUserStorageFactory to take to third party api for validation .

We find the transformaccessToken Method implemented for CustomProtocolMapper is getting called 2times for every Request

public class CustomProtocolMapper extends AbstractOIDCProtocolMapper
		implements OIDCAccessTokenMapper, OIDCIDTokenMapper {
public AccessToken transformAccessToken(AccessToken token, ProtocolMapperModel mappingModel,
			KeycloakSession session, UserSessionModel userSession, ClientSessionContext clientSessionCtx)