public @Nullable VirtualFile findFile(@NotNull String filePath) {
    VirtualFile file = LocalFileFinder.findFile(filePath);
    if (file == null && SystemInfo.isWindows && OSAgnosticPathUtil.isUncPath(filePath)) {
      file = LocalFileSystem.getInstance().findFileByPath(filePath);
    }
    if (file == null && myBaseDir != null && myBaseDir.isValid()) {
      file = myBaseDir.findFileByRelativePath(filePath);
    }
    return file;
  }
public @Nullable VirtualFile findFile(@NotNull String filePath)