[SNMP4J] SET MOTable value : Error "Not Writeable" generated at: 1.3.6.1.2.3.3.1

[Réda BENKIRANE]

Hello. I am trying to set a value in an MOTable. The MOTable elements MAX_ACCESS is defined as ACCESS_READ_WRITE.
MOTableBuilder customBuilder = new MOTableBuilder(customTable)						.addColumnType(1, SMIConstants.SYNTAX_OCTET_STRING, MOAccessImpl.ACCESS_READ_WRITE)						.addColumnType(2, SMIConstants.SYNTAX_INTEGER, MOAccessImpl.ACCESS_READ_WRITE)						.addColumnType(3, SMIConstants.SYNTAX_INTEGER, MOAccessImpl.ACCESS_READ_WRITE)						.addRowValue(new OctetString("192.168.1.10"))						.addRowValue(new Integer32(0))						.addRowValue(new Integer32(100))				        .addRowValue(new OctetString("192.168.1.11"))						.addRowValue(new Integer32(0))				        .addRowValue(new Integer32(200));								agent.registerManagedObject(customBuilder.build());
And however, when I send a SET to the agent, I get the error "Not Writeable" and I don't get it.
  final static OID[] customTableExistingOIDs = new OID[]{new OID("1.3.6.1.2.1.3.3.1"),		  												 new OID("1.3.6.1.2.1.3.3.2")}; customTablePDU.addAll(new VariableBinding[]{new VariableBinding(customTableExistingOIDs[0],new Integer32(8989)),            new VariableBinding(customTableExistingOIDs[1],new Integer32(8989))});        customTablePDU.setType(PDU.SET);    Snmp customSnmp = new Snmp(transport);        System.out.println("Request:\nSending CustomTable Snmp Set Request to Agent...");    ResponseEvent customTableResponse = customSnmp.set(customTablePDU, comtarget);
Agent side ERROR :
java.lang.Exception: Error 'Not writable' generated at: 1.3.6.1.2.1.3.3.1 = 8989	at org.snmp4j.agent.request.SnmpRequest$SnmpSubRequest.requestStatusChanged(SnmpRequest.java:621)	at org.snmp4j.agent.request.RequestStatus.fireRequestStatusChanged(RequestStatus.java:89)	at org.snmp4j.agent.request.RequestStatus.setErrorStatus(RequestStatus.java:52)	at org.snmp4j.agent.mo.DefaultMOTable.prepare(DefaultMOTable.java:661)	at org.snmp4j.agent.CommandProcessor$SetHandler.prepare(CommandProcessor.java:830)	at org.snmp4j.agent.CommandProcessor$SetHandler.processPdu(CommandProcessor.java:863)	at org.snmp4j.agent.CommandProcessor$SetHandler.processPdu(CommandProcessor.java:780)	at org.snmp4j.agent.CommandProcessor.processRequest(CommandProcessor.java:422)	at org.snmp4j.agent.CommandProcessor.processRequest(CommandProcessor.java:384)	at org.snmp4j.agent.CommandProcessor.dispatchCommand(CommandProcessor.java:340)	at org.snmp4j.agent.CommandProcessor$Command.run(CommandProcessor.java:560)	at org.snmp4j.agent.CommandProcessor.processPdu(CommandProcessor.java:163)	at org.snmp4j.MessageDispatcherImpl.fireProcessPdu(MessageDispatcherImpl.java:675)	at org.snmp4j.MessageDispatcherImpl.dispatchMessage(MessageDispatcherImpl.java:302)	at org.snmp4j.MessageDispatcherImpl.processMessage(MessageDispatcherImpl.java:373)	at org.snmp4j.MessageDispatcherImpl.processMessage(MessageDispatcherImpl.java:333)	at org.snmp4j.transport.AbstractTransportMapping.fireProcessMessage(AbstractTransportMapping.java:76)	at org.snmp4j.transport.DefaultUdpTransportMapping$ListenThread.run(DefaultUdpTransportMapping.java:423)	at java.lang.Thread.run(Thread.java:745)
Any help will be really appreciated. Thank you

Réda BENKIRANE