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"session bean and message driven beans are never re-entrant"

 
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On p.529 of JSR-318, it says

Session beans and message driven beans are never re-entrant.


But in chapter 4, singleton beans, which is also a session bean is re-entrant.
 
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On p.529 of JSR-318, it says
Session beans and message driven beans are never re-entrant.


This is specified for EJB 2.x (note that Singleton did not exist in these specifications)

But in chapter 4, singleton beans, which is also a session bean is re-entrant.


For EJB 3.1 re-entrance is only specified for Singleton Session beans.
 
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