I have a non-signed java applet interacting with the same host. Every time I click on an element in my page, the applet (which is a third part applet I have no control on) should load data from a URL. I say should, because for some files, I get

java.security.AccessControlException : access denied (java.util.PropertyPermission http.agent read)

and some other files are correctly loaded. All files are correctly readable and downloadable from the web server, and they are very simple text files.

I also found that, in some cases, files that previously returned the error are now loaded and continue to load, so it seems a cache is involved somehow.

Does any of you have an idea of what's going on here ? The behavior seems to be absolutely random, and I have no way of performing debug on this thing. Note: I used this applet to perform many other "single shot" file access, and it never gave me any problem. The only apparent difference I have is that now I do it "on-demand" via a javascript event.

What could be the cause, in the java of the applet or anywhere else ?