static bool setTextKeepCaret(S text, JTextComponent c) {
  if (c != null) swing {
    int caret = c.getCaretPosition();
    if (eq(c.getText(), text)) false;
    c.setText(text);
    setCaretPosition(c, caret);
    true;
  }
  ret c;
}

sbool setTextKeepCaret(JTextComponent c, S text) {
  ret setTextKeepCaret(text, c);
}