private void setEnsureNewLineAtEOF(@Nullable Boolean ensureNewLineAtEOF) {
      if (ensureNewLineAtEOF != null && myEnsureNewLineAtEOF == null) {
        myEnsureNewLineAtEOF = ensureNewLineAtEOF;
      }
    }
private void setEnsureNewLineAtEOF(@Nullable Boolean ensureNewLineAtEOF)