Apache knox appears to be leaking sockets

Sockets are left open each time a call to rest api is initiated. Tried updating timeout value in config, no affect.

[root@hdptestsrv01 knox]# ps -ef|grep knox
root 9310 6431 0 14:42 pts/0 00:00:00 su - knox
knox 9311 9310 0 14:42 pts/0 00:00:00 -bash
knox 13813 1 1 14:46 pts/0 00:00:30 /usr/java/latest/bin/java -Xmx4G -jar /usr/lib/knox/bin/gateway.jar
root 20252 6499 0 15:11 pts/1 00:00:00 grep knox

[root@hdptestsrv01 knox]# lsof -p 13813|grep "sock"|wc -l
2290

[root@hdptestsrv01 knox]# lsof -p 13813|grep "sock"
java 13813 knox 149u sock 0,6 0t0 52410 can't identify protocol
java 13813 knox 150u sock 0,6 0t0 52411 can't identify protocol
java 13813 knox 151u sock 0,6 0t0 52412 can't identify protocol
java 13813 knox 152u sock 0,6 0t0 52413 can't identify protocol
java 13813 knox 153u sock 0,6 0t0 52414 can't identify protocol
java 13813 knox 154u sock 0,6 0t0 52415 can't identify protocol
java 13813 knox 155u sock 0,6 0t0 52416 can't identify protocol