We have a Stateless Session Bean deployed in a oc4j server. A function in the bean returns a HashTable. Using traces we found that just before returning from the function, the hashtable has 14 key entries. Each entry contains a vector of size 130. But when the hashtable is received in the client, it is null. And this behavior is inconsistent, i.e., we get the correct hashtable sometimes.
Any idea why this could happen?