Class with Singleton design pattern shared by 2 applications

[gquintana]

Hello,

I have a singleton class which looks like

public class MySingleton [
 private MySingleton() {
 System.out.println("Init MySingleton");
 }
 private static MySingleton singleton;
 public static synchronized MySingleton getSingleton() {
 if (singleton == null) {
 singleton = new MySingleton();
 }
 }
}

This class is deployed twice in the same JBoss 4.0.1 server
- once in MyApp1.ear/MyEJB1.jar
- another time in MyApp2.ear/MyEJB2.jar


I noticed there was only one instance of these classes for both MyApp1 and MyApp2 (as a result MyApp2 can access data from MyApp1!). I would I like each application to have its own instance, how can I do that?

Thanks for your help,
Gerald

[gquintana]

After several days spent looking for a solution I finally understood I should isolate EAR class loaders. All I had to do was turn "Isolated" to true in the ear-deployer.xml!