java generics and reflection,why different result

Test test = new Test() {}; there's nothing in {},why the result is different.

public class Test<T> {
    private final TypeToken<T> typeToken = new TypeToken<T>(getClass()) {};
    private final Type type = typeToken.getType();

    public void foo() {
        System.out.println(this.type);
    }

    public static void main(String[] args) {
        Test<Integer> test = new Test<Integer>() {};
        Test<Integer> test2 = new Test<Integer>();
        test.foo();// class java.lang.Integer
        test2.foo();//T
    }
}