@SerializedConcurrentAccess not preventing concurrent access

[csplrj1]

Software
JDK 1.5
JBoss 4.0.5GA

Problem
I have used code as

@SerializedConcurrentAccess
public class Class1 implements SessionBean {

This does not prevents Concurrent Access to the Statefull Session bean.
I could not get the reason. I am coding as a simple Bean. is it that I have to type the code of the Bean in EJB3 format.

Thanks in advance

CSJakharia

[vkaushik_610]

I want to know about the performance hit of this flag : @SerializedConcurrentAccess

Regards
Vinay