Re: Calling Java from RPG

[MEovino@xxxxxxxxxxxxxxxxx]

David,

I had similar problems with null pointer exceptions.  I applied the latest
JV1 group PTF's to fix a problem with the *ADMIN webserver and it seemed to
take care of this as well.  People on the ignite400 list who were able to
run the Java/RPG that I could not all told me that they were up-to-date on
JV1 group PTF's.

Mike E.





                    "David Gibbs"
                    <dgibbs@mks.com>         To:     java400-l@midrange.com
                    Sent by:                 cc:
                    java400-l-admin@mi       Subject:     Calling Java from RPG
                    drange.com


                    07/08/2002 10:53
                    AM
                    Please respond to
                    java400-l






Folks:

Anyone done extensive work with calling Java code from a RPG program (in
V5R1)?

I'm trying to call a simple java method from RPG, but keep getting
exceptions.

My java method is defined as such ...

D data            s               O   class(*java:'Storage')
D manipulator     S               O   class(*java:'Manipulator')
D setString1      pr                  extproc(*java:'Manipulator':
D                                             'setString1')
D  string1                     128A   const varying

... and it's called like this ...

C                   eval      manipulator = newManipulator
C                   eval      data = newStorage(manipulator)
C                   eval      str1 = '12345'
C                   callp     setString1(manipulator:str1)

The call to newManipulator and newStorage work fine, but when I call
setString1, I get a null pointer exception.

On a similar note, anyone know how to debug a java method that is called
from RPG?  I tried to compile the java with a -g switch, and use F22 to
step
into the method, but it didn't work.

Thanks!

david

--
David Gibbs
Sr. Software Engineer / R&D / MKS Inc., www.mks.com
Lombard, IL, USA; tel: 630-495-2108; fax: 630-495-3591
Build Better Software




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