void (@NotNull RepositoryTreeNode node, @NotNull List<DirectoryEntry> data, @NotNull Expander expander) { RepositoryTreeNode existingNode = findExistingNode(node); if (existingNode != null) { expander.onBeforeRefresh(existingNode); existingNode.setChildren(data, getNodeLoadState()); expander.onAfterRefresh(existingNode); } }