| 72 |  | When using generics in the API methods, java runs a so called type erasure on all generic types, reducing a Collection<Param> to a simple Collection. | 
                        | 73 |  | Th eruntime system cannot determine the content type of this collection unless the user places an extra hint using the @Contains annotation. | 
                      
                        |  | 72 | When turning generics into thier class representation, java runs a so called type erasure, reducing a Collection<Param> to a simple Collection. | 
                        |  | 73 | Thus, the XML-RPC runtime system cannot determine the content type of this collection unless the user places an extra hint using the @Contains annotation. |