Correct way of making a singleton a Spring bean

Question

I am converting a singleton to a Spring bean, so that if the singleton fails to initialize, then entire web application\'s spring context doesn\'t load properly.

Th

Answer 1

True singleton are hard to get working.

Volatile double-checked locking also does not work property. Read about it on wiki http://en.wikipedia.org/wiki/Double-checked_locking

Your best bet is to simply do this

public class MySingleton {

    private static MySingleton INSTANCE = new MySingleton();

That is if you do not have any constructor parameters in your real code.