Class java.util.Map has generic type parameters, please use GenericTypeIndicator instead

Question

I am using firebase to retrieve data from database n use

Map map = dataSnapshot.getValue(Map.class);

to get values, but it

Answer 1

The error points out correctly where you are going wrong

 Map map = dataSnapshot.getValue(Map.class);

Map class uses parameter to define the types of Key and Object where as you don't give them and simply use Map.class which fails.

Try the below code - since Key are always string and we can have any type of Object for them

    Map map = (Map) dataSnapshot.getValue();