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MyASPN >> Mail Archive >> Jython-users
Jython-users
Re: [Jython-users] Hello, odd problem here.
by Samuele Pedroni other posts by this author
May 5 2003 9:39PM messages near this date
[Jython-users] Hello, odd problem here. | Re: [Jython-users] proxy classes (was Hello, odd problem here.)
At 02:20 05.05.2003 -0400, Jon Franz wrote:

>         - somewhere during these changes, I did something that made me 
>  (later, when I went to make the jar) run into the ProxyMaker problem and 
>  was forced to change the -core option of jythonc to use -all instead, 
>  thanks to this this list 
>  (http://aspn.activestate.com/ASPN/Mail/Message/724323) I was able to find 
>  the solution of using -all, but not the reason _why_.  None of my code 
>  calls eval or anything similar, so why does my app suddenly need the 
>  compile support?

likely there is some Python class with a Java superclass that escapes 
jythonc static analysis - you should check jythonc compilation transcript - 
so its proxy will be created at runtime instead of statically


> -  Due to the security restrictions put in place on web start apps, I 
> cannot test the app without signing the jars - could my signing of the 
> third-part jfreechart jars have caused this problem? (Until I signed them, 
> I still got security errors: what should I do if I am not to sign third 
> party jars?)

what kind of security errors? if it's classloader creation then it is 
related to proxy creation at runtime vs statically.


> -  how can I trap for exceptions in an eventDispatch thread (or any 
> pure-java thread) from jython?  I can trap and print traceback information 
> for my threads to my logging window, but while runnign the app in 
> interpreted mode I sometimes cause a bug that shows up via a eventDispatch 
> thread exception - how would I trap for this (or other errors) so that I 
> could show the traceback in my own custom logging window?
> 

JWS should allow to enable through preferences a Java console or to log the 
output to the console.

Otherwise grep the java library code that comes with the JDK for 
sun.awt.exception.handler...





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