VFilePropertyChangeEvent (@NotNull VirtualFile parent, @NotNull String childName) { if (((VirtualDirectoryImpl)parent).getChildrenCaseSensitivity() != FileAttributes.CaseSensitivity.UNKNOWN) { return null; } FileAttributes.CaseSensitivity sensitivity = FileSystemUtil.readParentCaseSensitivity(new File(parent.getPath(), childName)); return generateCaseSensitivityChangedEvent(parent, sensitivity); }