[SNMP4J] Fix for High CPU usage and SNMP4J DefaultTcpTransportMapping

[Brice Fines]

Hi,

Jim, thanks for the patch you supplied.
I just tested it under Windows XP SP3 with IBM JDK 1.5 SR11 and it solves 
the problem of high cpu usage. Our application work like with SNMP4J 
1.10.2: commands are sent quickly over TCP and almost no CPU usage is 
required (less than 8%), and when the application is IDLE, it does not use 
CPU.
I hope your patch will be checked and integrated soon.
I will try to check under AIX now, and I will report the result to this 
list.
(Hope more people will report results too)

Regards