Subj : Re: Rhino: Accessing embedded exception in JavaException
To   : Lewis Gardner
From : Igor Bukanov
Date : Tue Apr 20 2004 12:35 pm

Lewis Gardner wrote:
> Hi,
> when I call a Java method via LiveConnect (Rhino) and the method
> throws an exception the type of the exception thrown in
> "JavaException". Is there any way I can access the original exception,
> the one actually thrown by the Java method?

I would suggest to upgrade to Rhino 1.5R5 which consistently rethrows 
exceptions from Java methods as org.mozilla.javascript.WrappedException 
where the method getWrappedException() returns the original exception 
object.

Prior 1.5R5 Rhino could throw either 
org.mozilla.javascript.WrappedException or 
org.mozilla.javascript.JavaScriptException and in the later case to get 
the original object you have to call getValue() method there, check if 
it is an instance of Throwable and in addition if that was an instance 
of WrappedException, then call getWrappedException() to get the real 
exception source.

In Rhino 1.5R5 JavaScriptException represents only exceptions thrown by 
scripts with JavaScript "throw" statement.

Regards, Igor

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