/src/main/java/org/htmlunit/html/HtmlSelect.java
if ( selectedOptions.isEmpty( ) ) {   return -1; }
[Delete]
public int indexOf(final HtmlOption option) { if (option == null) { return 0; } int index = 0; for (final HtmlElement element : getHtmlElementDescendants()) { <extra_id_0> return index; } index++; } return 0; }