JDI currently has methods that allow the client to get the
raw generic signature strings for fields, methods and classes.

It would be nice if JDI had actual types that represent the generic
types, similar to these types that were added to java.lang.reflect
to support generics:

GenericArrayType
GenericDeclaration
ParameterizedType
Type
TypeVariable
WildcardType

See also 4421040.