protected FlowElement convertJsonToElement(JsonNode elementNode, JsonNode modelNode) { CallActivity callActivity = new CallActivity(); if (StringUtils.isNotEmpty( getPropertyValueAsString(PROPERTY_CALLACTIVITY_CALLEDELEMENT, elementNode))) { callActivity.setCalledElement( getPropertyValueAsString(PROPERTY_CALLACTIVITY_CALLEDELEMENT, elementNode)); } callActivity .getInParameters() .addAll(convertToIOParameters(PROPERTY_CALLACTIVITY_IN, elementNode)); callActivity .getOutParameters() .addAll(convertToIOParameters(PROPERTY_CALLACTIVITY_OUT, elementNode)); return callActivity; }