Zabbix Java Gateway 2.2.1 lost JMX credentials

[Mick]

From a few days in Zabbix 2.2.1 I noticed a strange error. Zabbix Java Gateway lost credentials. It happens randomly to a group of hosts.

Log file:

http://speedy.sh/vF3Vy/zabbix-java-gateway.log

Regards
Mick