adventnet 1.2.2 - Too many SnmpVarBind objects

adventnet 1.2.2 - Too many SnmpVarBind objects

Hello,

I am investigating a memory leak issue in the enterprise application.
I did some profiling and see that number of SnmpVarBind instances is above 56,000 , these objects are being created by Asn1Parser and SnmpPDU objects, we have 44 instances of each of of them.
Overall I have 3 sessions  ( 3 SnmpSession objects ) which is quite reasonable, but number SnmpVarBind objects grows permanently until I get OutOfMemory exception.
I wonder what could be a reason for that? Is there any resources allocation needed to be closed? I explored an API and I couldn't find something like that.
Thanks in advance,
Alex