[jboss-user] [Clustering/JBoss] - How to create singletons?

[aidndev]

We need to create singleton classes to cache database data.  Using an EJB container we are not guaranteed that truly one object is being instantiated and shared.  I have heard various answers to this, including some mysterious "well, it depends on the classloader..." answers.  From what I have found online, the answer appears to have something to do with declaring the class final, or using @service, but I don't know if these are definitely the solution.  How can we make a singleton that is definitely really a singleton?

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