JDOM was designed before Generics, but JDOM 2.x has taken the proven design of JDOM 1.x and extended it to use Generics where possible. Specifically, all Collections-based operations require appropriately TYPED inputs, and return appropriately typed results. Further, JDOM 2.x TAKES advantage of other Java 5 features like varargs, and co-variant return TYPES.

Generics: Element.getAttributes () returns List<Attribute>, Element.getChildren () returns List<Element>, etc.

Co-variant Return Types: Element. CLONE () returns Element, Text. Detach () returns Text, etc.

I tried to use JDOM and get an error like this:

java.lang.NoSuchMethodError (Or)

java.lang.NoClassDefFoundError: org/xml/sax/SAXNotRecognizedException

JDOM was designed before Generics, but JDOM 2.x has taken the proven design of JDOM 1.x and extended it to use Generics where possible. Specifically, all Collections-based operations require appropriately typed inputs, and return appropriately typed results. Further, JDOM 2.x takes advantage of other Java 5 features like varargs, and co-variant return types.

Generics: Element.getAttributes () returns List<Attribute>, Element.getChildren () returns List<Element>, etc.

Co-variant Return Types: Element. Clone () returns Element, Text. Detach () returns Text, etc.

I tried to use JDOM and get an error like this:

java.lang.NoSuchMethodError (Or)

java.lang.NoClassDefFoundError: org/xml/sax/SAXNotRecognizedException