Re: Need help with RNX0301 error -- CLASSPATH or signature error

[David Gibbs <david@xxxxxxxxxxxx>]

What’s the fully qualified name of the class you’re trying to use?

Fully qualified class includes package & class name.

It looks like your trying to use the jar name in the class name.

David

IBM i on Power Systems: For when you can't afford to be out of business!

I'm riding in the American Diabetes Association's Tour de Cure to raise
money for diabetes research, education, advocacy, and awareness.  You can
make a tax-deductible donation to my ride by visiting
https://mideml.diabetessucks.net.

You can see where my donations come from by visiting my interactive
donation map ... https://mideml.diabetessucks.net/map (it's a geeky thing).

I may have diabetes, but diabetes doesn't have me!


On Sun, Oct 6, 2024 at 11:25 AM Blalock, Bill via JAVA400-L <
java400-l@xxxxxxxxxxxxxxxxxx> wrote:

> I am trying to call Jave from RPGLESRC.  I keep running into RNX0301 when
> executing the RPGLE program.  I have been at it 3 days and sure could use
> some guidance.
>
> Message . . . . :   Java exception received when calling Java method.
>  Cause . . . . . :   RPG procedure PRCPWDIRG in program BLALOCK/PRCPWDIRG
>    received Java exception
> "java.lang.NoClassDefFoundError:rpgExample.Item" when calling
>    method "<init>" with signature "()V" in class "Item".
>
> I tried for two days to get past this error with my own class and RPG.
> Yesterday I decided to see if I could make RPGLE and Java work together
> with an example from the Internet.
> https://www.mysamplecode.com/2011/06/call-java-from-rpgle-explanation-with.html
> This is a well thought out example.
>
> I wanted to eliminate coding errors in my RPGLE and Java, to minimize the
> possibility that this is a signature error. Still getting the same error.
>
> I created an Eclipse project, rpgExample.  I copied the Java source from
> the example into two files, Item.java and GetItem.java.  In Eclipse I
> exported them to the IFS as a jar file, named rpgExample.jar.  The
> destination was /iasp1/java/prcExample.  So now I have the jar in
> /iasp1/java/prcExample/rpgExample.jar.
>
> I create the RPGLE program as BLALOCK/QRPGLESRC (PRCPWDIRG).  I changed
> the package name from "com.as400samplecode" to match my package name of
> "rpgExample" in both Java and RPGLE.
>
> I used this statement at the top of the RPGLE program:
>          cmdString = 'ADDENVVAR ENVVAR(CLASSPATH) ' +
>                   'VALUE(''/iasp1/java/prcExample/rpgExample.jar'')' +
>                    'REPLACE(*YES)';
>          runCmd(cmdString);
>
> I checked the value of CLASSPATH after executing the program with
> WRKENVVAR.  The value was
>                  CLASSPATH
>  '/java/prcExample/rpgExample.jar'
> That is what I expected.  I checked the CLASSPATH with WRKLNK.  It was
> found.
>
> The execution fails with the RNX0301 error.
>
> I cannot understand what is going on.  I'd appreciate some advice.  I can
> send the source code to you.
>
> Thanks
>
>
>
>
>
>
> Bill Blalock
> Complete Payment Recovery Services
> C  (205) 292-0725
> E  Bill.Blalock@xxxxxxxxxxxxx<mailto:Bill.Blalock@xxxxxxxxxxxxx>
>
> The information contained in this message is proprietary and/or
> confidential. If you are not the intended recipient, please: (i) delete the
> message and all copies; (ii) do not disclose, distribute or use the message
> in any manner; and (iii) notify the sender immediately. In addition, please
> be aware that any message addressed to our domain is subject to archiving
> and review by persons other than the intended recipient. Thank you. Message
> Encrypted via TLS connection
> --
> This is the Java Programming on and around the IBM i (JAVA400-L) mailing
> list
> To post a message email: JAVA400-L@xxxxxxxxxxxxxxxxxx
> To subscribe, unsubscribe, or change list options,
> visit: https://lists.midrange.com/mailman/listinfo/java400-l
> or email: JAVA400-L-request@xxxxxxxxxxxxxxxxxx
> Before posting, please take a moment to review the archives
> at https://archive.midrange.com/java400-l.