private boolean checkMetaData(final MetaData metaData) {
        return Objects.nonNull(metaData) && !StringUtils.isBlank(metaData.getMethodName()) && !StringUtils.isBlank(metaData.getServiceName());
    }
plugin is execute.

@param exchange the current server exchange
@return default false.
shenyu-plugin/shenyu-plugin-proxy/shenyu-plugin-rpc/shenyu-plugin-motan/src/main/java/org/apache/shenyu/plugin/motan/MotanPlugin.java