@Override
        public ChildData getCurrentData(Path fullPath) {
            if (!fullPath.getParentPath().equals(path)) {
                throw new IllegalArgumentException("Path '" + fullPath + "' is not a child path of '" + path + "'");
            }

            return getData(fullPath).map(bytes -> new ChildData(fullPath.getAbsolute(), null, bytes)).orElse(null);
        }
The path this is caching and listening to
zkfacade/src/main/java/com/yahoo/vespa/curator/mock/MockCuratorFramework.java