- Im trying to figure out why Im getting an error when using Java client for our access gateway. We are using Web Interface 5.4 and Java 9.6. The accessgateway version we are using is 9.2 on a netscaler. I have the web interface set up to allow Java client, but I keep getting this error. I have tried Java 1.5 and 1.6. Any help on this would be great.