[pigeon] Generated Java contains raw types #119338
Description
Pigeon version 7.1.0 generates raw ArrayList types, causing rawtypes warnings to be raised.
Example warning (upgraded to error in g3 codebase):
warning: [rawtypes] found raw type: ArrayList
ArrayList wrapped = new ArrayList<>();
^
missing type arguments for generic class ArrayList<E>
where E is a type-variable:
E extends Object declared in class ArrayList
error: warnings found and -Werror specified