In one of my classes I have...
public Class<? extends Map<K, V>> getObjectType() {
return (Class<? extends Map<K, V>>) Map.class;
}
What is wrong with this code
I keep getting
error: incompatible types: Class <Map> cannot be converted to Class<extends Map<K,V>>
return (Class<? extends Map<K, V>>) Map.class;
Can someone point me in the right direction
K and V aren't actual types and would be erased by type erasure anyway. Just use Map. And there is no need to cast. You only cast to a more specific type and Map.class is an instance of Class<? extends Map>.
public Class<? extends Map> getObjectType() {
return Map.class;
}
other examples using compatible types:
public Class<? extends Map> getObject1Type() {
return HashMap.class;
}
public Class<? extends Map> getObject2Type() {
return LinkedHashMap.class;
}