Trying to understand the need for typecasting

Question

Can someone explain why there is a need to typecast in the getObject() method? Thank you,
public abstract class GenericTest<T extends GenericTest>
    public GenericTest()
    public void getObject()
        T objectOne = getObjectCast();
        T objectTwo = (T) objectOne.getObjectCast();  //why must I typecast here?
    public T getObjectCast()
        return ( T ) new Object();
}

Answer 1

The correct definition is (turn on your compiler warnings):
public abstract class GenericTest<T extends GenericTest<T>> {
    public void getObject() {
        T objectOne = getObjectCast();
        T objectTwo = objectOne.getObjectCast();
    public abstract T getObjectCast();
}