public void updateSignature() {
    if (mySignature == null) return;
    @NonNls StringBuilder buffer = new StringBuilder();
    String modifier = ExtractUtil.getModifierString(myHelper);
    buffer.append(modifier);
    buffer.append(ExtractUtil.getTypeString(myHelper, true, modifier));

    final String _name = getEnteredName();
    String name = _name == null ? "" : _name;
    ExtractUtil.appendName(buffer, name);

    buffer.append("(");
    String[] params = ExtractUtil.getParameterString(myHelper, false);
    if (params.length > 0) {
      String INDENT = "    ";
      buffer.append("\n");
      for (String param : params) {
        buffer.append(INDENT).append(param).append("\n");
      }
    }
    buffer.append(")");
    mySignature.setSignature(buffer.toString());
  }
public void updateSignature()