void (LanguageFileType fileType) { final var root = (DefaultMutableTreeNode) patternTreeModel.getRoot(); final Enumeration<TreeNode> children = root.children(); while (children.hasMoreElements()) { final var node = (DefaultMutableTreeNode) children.nextElement(); for (String lang : node.toString().split("/")) { if (lang.equalsIgnoreCase(fileType.getName())) { TreeUtil.selectInTree(node, false, patternTree, true); return; } } } }