java.security.AccessControlException: access denied, thxxxxxxxx

[raybristol]

hi, I am intergrating paypal to our website, our site need to sending/receiving data from paypal site in order to verify payment. everythign went well in my development machine (windows), however, after I uploading it to live server(linux), I got following exception:

java.security.AccessControlException: access denied (java.net.SocketPermission www.sandbox.paypal.com resolve)

I think it's something to do with catalina.policy file in 'tomcat4\conf\', I try to change some setting, but it doesn't work, maybe I set it wrong ?

I really appreciate if anyone can give me some help, I been tried to solve it for days and really out of ways!

Many thanks again for reading my question!