The following example should compile, but does not:

class C1 {
    String f1 = "f1";
    C1() {
        class C2 { // not early for C1
            C2() {
                class C3 { // early for C2
                    C3() {
                        f1.hashCode(); // compiles ok
                        class C4 { // not early for C3
                            C4() {
                                f1.hashCode(); // bogus error
                            }
                        }
                    }
                }
                super();
            }
        }
    }
}

$ javac -d classes --release 24 --enable-preview C1.java
C1.java:11: error: no enclosing instance of type C1 is in scope
                                f1.hashCode(); // bogus error
                                ^
Note: C1.java uses preview features of Java SE 24.

Neither reference to "f1" is in the early initialization context of C1, so they should both be allowed.