[LOG4J2-1605] 
[LOG4J2-1605] 

Improve error messages for TcpSocketServer and UdpSocketServer.
xnslong/logging-log4j2,xnslong/logging-log4j2,apache/logging-log4j2,xnslong/logging-log4j2,apache/logging-log4j2,GFriedrich/logging-log4j2,codescale/logging-log4j2,GFriedrich/logging-log4j2,GFriedrich/logging-log4j2,codescale/logging-log4j2,apache/logging-log4j2,codescale/logging-log4j2