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

PS everyone.

The META-INFO folder contains the file MANIFEST.MF.

MANiFEST.MF has one line, "Manifest-Version: 1.0"

The URL of the example I am trying to implement is "https://www.mysamplecode.com/2011/06/call-java-from-rpgle-explanation-with.html"

I haven't posted the code because it seems long.  If anyone wants to take a look at it I can email to you as attachments or post it into the mailing list.

Thank you all.

-----Original Message-----
From: JAVA400-L <[email protected]> On Behalf Of Blalock, Bill via JAVA400-L
Sent: Sunday, October 6, 2024 1:12 PM
To: Java Programming on and around the IBM i <[email protected]>
Cc: Blalock, Bill <[email protected]>
Subject: RE: Need help with RNX0301 error -- CLASSPATH or signature error

Hi David,

The fully qualified name of the classes I am trying to use are
        rpgExample.Item
        rpgExample.GetItem

I exported these two classes in the package rpgExample to a jar file named rpgExample.  To confusing?  The jar file contains the two classes Item and GetItem.


I tried exporting again into a clean environment.  This jar is rpgExampleJar.jar.  The package in the jar is rpgExamplePkg.  The structure of the jar file, obtained by copying it as a zip file, is

META-INFO
       MANIFEST.MF
rpgExamplePkg
        Item.class
        GetItem.class

How should I set up the CLASSPATH?

Thank you for helping.

-----Original Message-----
From: JAVA400-L <[email protected]> On Behalf Of David Gibbs via JAVA400-L
Sent: Sunday, October 6, 2024 12:31 PM
To: Java Programming on and around the IBM i <[email protected]>
Cc: David Gibbs <[email protected]>
Subject: Re: Need help with RNX0301 error -- CLASSPATH or signature error

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

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On Sun, Oct 6, 2024 at 11:25 AM Blalock, Bill via JAVA400-L < [email protected]> 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%2F2011%2F06%2Fcall-java-from-rpgle-explanation-with.h
> tml&data=05%7C02%7Cbill.blalock%40fisglobal.com%7C1ab34eb773e942c6b917
> 08dce62ca4f6%7Ce3ff91d834c84b15a0b418910a6ac575%7C0%7C0%7C638638326638
> 161185%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJ
> BTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=RhVyxWqlc9RIuMdwMnnEQYv
> D5nYdge7P5rYz7jhbKSw%3D&reserved=0
> 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  [email protected]<mailto:[email protected]>
>
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