protected void convertElementToJson(ObjectNode propertiesNode, FlowElement flowElement) {
}
protected FlowElement convertJsonToElement(JsonNode elementNode, JsonNode modelNode, Map<String, JsonNode> shapeMap) {
BusinessRuleTask task = Bpmn2Factory.eINSTANCE.createBusinessRuleTask();// BusinessRuleTask();
/*task.setClassName(getPropertyValueAsString(PROPERTY_RULETASK_CLASS, elementNode));
task.setInputVariables(getPropertyValueAsList(PROPERTY_RULETASK_VARIABLES_INPUT, elementNode));
task.setResultVariableName(getPropertyValueAsString(PROPERTY_RULETASK_RESULT, elementNode));
task.setRuleNames(getPropertyValueAsList(PROPERTY_RULETASK_RULES, elementNode));
task.setExclude(getPropertyValueAsBoolean(PROPERTY_RULETASK_EXCLUDE, elementNode));*/