Re: Rpg calls Java with errors

[Barbara Morris <bmorris@xxxxxxxxxx>]

Barbara Morris wrote:
> ...
> Hmm.  I just tried this again, and it does work with anything printed by
> System.out.println or System.err.println, but it doesn't seem to get the
> exception information.
> 
> I think that might be a limitation of RPG.  When the RPG runtime makes
> your method call, it checks for a JNI exception, and if one occurred, it
> sends the RNX0301 message.  The RPG runtime -could- (but doesn't
> currently) call a JNI function called ExceptionDescribe that would
> output the exception information to stderr.  And since the RPG runtime
> then handles the JNI exception, it's not possible for the RPG program to
> later call ExceptionDescribe itself.
> 
> It might be possible in the future to have an environment variable that
> would tell the RPG runtime to call ExceptionDescribe for exceptions on
> method calls.
> 

The future is here.  In V5R3, if you set environment variable
QIBM_RPG_JAVA_EXCP_TRACE to 'Y', the RPG runtime will call
ExceptionDescribe.
The output will go to stderr.  See the V5R3 version of the ILE RPG
Programmer's
guide for details.