Grouper Users - Open Discussion List

[Julien Gribonvald <>]

Hi,

We have some problems in getting membership, here is the error that we 
get in our logs :

java.lang.ClassCastException: Problem in HibernateSession: 
HibernateSession: isNew: true, isReadonly: true, grouperTransactionType: 
READONLY_NEW,
Exception in list: (class edu.internet2.middleware.grouper.Group), 
ByHqlStatic, query: 'select g from Group as g  where g.uuid in 
(:Q2C71BB40, :Q2C71BB41, :Q2C71BB42)', cacheable: false, cacheRegion: 
edu.internet2.middleware.grouper.internal.dao.hib3.Hib3GroupDAO.FindByUuids, 
tx type: null, tx type: nullBind var[0]: 'Param (class 
java.lang.String): 'Q2C71BB40'->'a89fad9d-cc1a-4e05-a234-58d77350bf11', 
Bind var[1]: 'Param (class java.lang.String): 
'Q2C71BB41'->'1ec76d3b-bf54-4c0b-8c18-ba75194c5da5'Bind var[2]: 'Param 
(class java.lang.String): 
'Q2C71BB42'->'5c6726dd-11f8-4c94-bc0d-42065c58d8a9',


Do you know where this could could ?

To explain our context we integrated our own group manager in uPortal 
(using only grouper api) and this error occure when a portlet do a 
getUserRole() (JSR168) to get groups of a user, and the portlet do 
several request for a user. This is not a big problem as the error is 
well intercepted, but sometimes the user don't get all ressources that 
he must get. Is it possible that too much request overload the grouper 
api in doing request on database ? I already have a such problem 
(classCastException) with hibernate due to a such case.

Thanks

Julien
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