As part of work for JEP 220 "Modular Run-Time Images", security providers loading mechanism is enhanced to support modular providers through java.util.ServiceLoader. The default JDK security providers have been refactored to be modular providers and registered inside java.security file by provider name instead of provider class name. As for providers which have not been re-worked to modules, they should be registered by provider class names in java.security file.