Indeed for NetBeans this codepath should not be hit. If permissions were somehow messed with though, the file might indeed be unreadable and thus explain why the "load from classpath" route is taken.
Abstract: While celebrating the 21st year since the very first IEEE 802.11 “legacy” 2 Mbit/s wireless local area network standard, the latest Wi-Fi newborn is today reaching the finish line, topping ...