private static boolean isToNode(final Application fromApplication, final Application toApplication) {
        if (!toApplication.getServiceType().isRpcClient()) {
            return true;
        }
        if (toApplication.getServiceType().isAlias()) {
            return true;
        }
        return false;
    }
@author HyunGil Jeong
@author jaehong.kim
web/src/main/java/com/navercorp/pinpoint/web/applicationmap/nodes/NodeListFactory.java