void (@NotNull WorkspaceFileSet fileSet) { if (!(fileSet instanceof WorkspaceFileSetWithCustomData<?>) || !isInContent((WorkspaceFileSetWithCustomData<?>)fileSet)) { return; } VirtualFile root = fileSet.getRoot(); if (fileSet instanceof WorkspaceFileSetImpl && !((WorkspaceFileSetImpl)fileSet).getRecursive()) { nonRecursiveRoots.add(fileSet.getRoot()); } else { recursiveRoots.add(root); } }