How does an enum singleton function?
Singleton Pattern: Using Enum Version
How to initialize Java enum based Singleton? On using Enum based Singleton to cache large objects (Java) How to create a singleton class using enum Instantiating and using an enum singleton Why am I getting this compiler error (using enum as singleton)? Singleton enum with constants How do I implement logging in an enum singleton? advantage of enum over class in singleton pattern Why is Enum best implementation for Singleton singleton using enum enum singleton, referenced by interface, instance by string name Implementing enum-based singleton How do load a properties file and pass it to a java singleton (enum) Thread-safe Enum Singleton Implementing Singleton with an Enum (in Java) Multiple-Element Enum still Singleton? What is the use of the enum singleton in Java? Is this class a singleton? When Singleton is not Singleton? Singleton in singleton Does ENUM Singleton through several processes work in Android? Singleton with Enum called by threads Serializing ENUM Singleton Singleton Enum implementation with parameters thread safe singleton using enum How to use the "single-element enum type" to make this class a singleton? Annotations for Java enum singleton What is the best approach for using an Enum as a singleton in Java? Singleton with Enum vs Singleton with double-checked locking