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If i edit the categories of hel desk modules, i receive a null pointer exception.
This happen because the method getAttribute("stack") of session, return a null object, when the stack isn't store before in the session.
To prevent this exception I've added an if statement, to controll the value of stack after the calling of method getAttribute().
If the stack is null after the calling, assign to stack a new empty HashMap.
Marco Pancioni
Antica Bottega Digitale
Concursive Solution Provider