Re: [Ikvm-developers] Exception handling

[Igor K. <sha...@gm...>]

I found the cause. It's my bad, sorry. An exception I throw in my Java code
is derived from java.lang.Exception and my exception's constructor doesn't
call super().
All good now, thans!

Igor


-----Original Message-----
From: Jeroen Frijters [mailto:je...@su...] 
Sent: Friday, August 30, 2013 10:19 AM
To: Igor Kolesnik; ikv...@li...
Subject: RE: [Ikvm-developers] Exception handling

Hi Igor,

Can you give a specific example, because the scenario you describe below
works as expected (i.e. the System.Exception.Message property contains the
message passed to the Java exception constructor).

Regards,
Jeroen

> -----Original Message-----
> From: Igor Kolesnik [mailto:sha...@gm...]
> Sent: Thursday, August 29, 2013 22:37
> To: ikv...@li...
> Subject: [Ikvm-developers] Exception handling
> 
> Hi;
> 
> 
> 
> In Java I have something like this
> 
> 
> 
> throw new java.lang.Exception(message);
> 
> 
> 
> in .NET I catch exceptions like this (it may come from both sides, 
> .NET and Java)
> 
> 
> 
> catch (System.Exception e) {
> 
>                 // using e here, e.Message, e.StackTrace, etc.
> 
> }
> 
> 
> 
> The problem here is that if an exception is coming from the Java side, 
> then e has no message, that is e.Message == "".
> 
> However, I can access that message by using cast 
> ((java.lang.Throwable)e).getMessage().
> 
> 
> 
> So, what would be a recommended way to convert java.lang.Throwable to 
> System.Exception? A way I see is to manually parse Throwable by 
> extracting the fields I need and create a new System.Exception instance.
> 
> Are there any helpers for that?
> 
> 
> 
> Thanks
> 
> Igor
> 
>