[Zope3-dev] Re: Java applets and zope3

Rocky Burt rocky at serverzen.com
Sun Dec 17 13:08:19 EST 2006


On Sun, 2006-17-12 at 10:40 +0100, Dieter Maurer wrote:
> Paul Carduner wrote at 2006-12-12 22:59 -0800:
> > ...
> >load: class http://www.carduner.net/Programs/Fractals/Attractor.class not found.
> >java.lang.ClassNotFoundException:
> >http:..www.carduner.net.Programs.Fractals.Attractor.class
> > ...
> >	at java.lang.Thread.run(Unknown Source)
> >Caused by: java.io.IOException: open HTTP connection failed.
> 
> Java tracebacks, too, are not so bad.
> 
> As you can clearly see, the Java runtime tried to open an
> HTTP connection and failed.
> 
> The reason is probably that it tried the wrong server.

Actually it looks like the problem is java sandbox security.  An applet
is in a restricted security zone (unless special privileges are
granted).  One of the restrictions is that an applet can only make a
socket connection back to the same server that is hosting the applet.
If I had to guess based on the java stacktrace I'd say the applet is
trying to connecto to some third-party server.

- Rocky

-- 
Rocky Burt
ServerZen Software -- http://www.serverzen.com
News About The Server (blog) -- http://www.serverzen.net
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