[SNMP4J] SNMP4J Agent 1.3.2: NullPointer Exception when receiving GET requests with unknown community strings

[Gianluca Uberti]

Hi there,
I am trying to develop an SNMP agent capable of responding to V1 and V2c
requests with the help of SNMP 4J Agent framework version 1.3.2;
my community string is configured as "public"; any time the agent
receives a V2c GET request with a community string different from
"public", it hangs and the following exception is logged:

20091202 173258 CET [ERROR] <DefaultUDPTransportMapping> PTMA0000:
java.lang.NullPointerException
Trace for the exception:
java.lang.NullPointerException
    at java.util.TreeSet.<init>(TreeSet.java:154)
    at
org.snmp4j.agent.mo.snmp.SnmpCommunityMIB.getCoexistenceInfo(SnmpCommunityMIB.java:546)
    at
org.snmp4j.agent.CommandProcessor.processPdu(CommandProcessor.java:116)
    at
org.snmp4j.MessageDispatcherImpl.fireProcessPdu(MessageDispatcherImpl.java:610)
    at
org.snmp4j.MessageDispatcherImpl.dispatchMessage(MessageDispatcherImpl.java:287)
    at
org.snmp4j.MessageDispatcherImpl.processMessage(MessageDispatcherImpl.java:347)
    at
org.snmp4j.MessageDispatcherImpl.processMessage(MessageDispatcherImpl.java:309)
    at
org.snmp4j.transport.AbstractTransportMapping.fireProcessMessage(AbstractTransportMapping.java:83)
    at
org.snmp4j.transport.DefaultUdpTransportMapping$ListenThread.run(DefaultUdpTransportMapping.java:364)
    at java.lang.Thread.run(Thread.java:619)

It does seem to me an actual SNMP 4J Agent framework issue...any help is
appreciated.

Kind regards

GL

--
Gianluca Uberti
Kernel SW Engineer
Mycom France s.a.r.l.
t: +33 1 49 03 77 48
f: +33 1 47 73 06 51
e: gianluca.uberti at mycom-int.com
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