CompileTimeConstants.java

import org.checkerframework.checker.interning.qual.Interned;

public class CompileTimeConstants {
    class A {
        static final String a1 = "hello";
        @Interned String a2 = "a2";

        void method() {
            if (a1 == "hello") {}
        }
    }

    class B {
        static final String b1 = "hello";

        void method() {
            if (b1 == A.a1) {}
        }
    }
}