public static T MaxEntry<T, S>(
	IQueryable<T> source,
	Expression<Func<T, S>> selector
)

Public Shared Function MaxEntry(Of T, S) ( _
	source As IQueryable(Of T), _
	selector As Expression(Of Func(Of T, S)) _
) As T

public:
generic<typename T, typename S>
static T MaxEntry(
	IQueryable<T>^ source, 
	Expression<Func<T, S>^>^ selector
)

J# supports the use of generic APIs, but not the declaration of new ones.