Java - Type mismatch: cannot convert from element type Object to String

Question

I\'m having this error:

Type mismatch: cannot convert from element type Object to String

This is the code in error:

Answer 1

I think you're casting is wrong..

What is u.getAllPermissions().get(k); should return? List of something? if it does so you need to add type of the generic list

List perms = (List)u.getAllPermissions().get(k);

If that doesn't work you can also try to do

for (Object o : perms) {
 String s = o.toString();
 .....
}

Hope that helps.. If not answer my question and it will be easier to help