invalidates the sso session for the given session id concode_field_sep PlaceHolder placeHolder concode_field_sep SAMLSSOReqValidationResponseDTO validateIdPInitSSORequest concode_elem_sep boolean isSAMLSSOLoginAccepted concode_elem_sep SAMLSSORespDTO authenticate concode_elem_sep boolean isOpenIDLoginAccepted concode_elem_sep SAMLSSOReqValidationResponseDTO validateSPInitSSORequest