private List<Link> findLink(Application application, Function<Link, Node> linkToNode) {
        List<Link> findList = new ArrayList<>();
        for (Map.Entry<LinkKey, Link> entry : linkMap.entrySet()) {
            final Link link = entry.getValue();
            final Node node = linkToNode.apply(link);
            if (node.getApplication().equals(application)) {
                findList.add(link);
            }
        }
        return findList;
    }
find all out links of fromApplication
@param fromApplication
@return
web/src/main/java/com/navercorp/pinpoint/web/applicationmap/link/LinkList.java