#103 Thread-Safe Singleton with Holder

Companies:

Opensolutions

Themes:

JavaConcurrencyCode Review

Is this Singleton implementation thread-safe?

public class Singleton {
    private Singleton() {}

    private static class SingletonHolder {
        private final static Singleton INSTANCE = new Singleton();
    }

    public static Singleton getInstance() {
        return SingletonHolder.INSTANCE;
    }
}

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