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

I think the structure of your jar file should match the structure of your
target folder in eclipse.

Normally your classes would be in a folder called classes in both the
target folder and your jar file

How are you creating your jar file?

On Sun, 6 Oct 2024, 21:36 Blalock, Bill via JAVA400-L, <
[email protected]> wrote:

> Hi Colin;
>
> The Item class is in the jar.  The package name is rpgExample.
>
> I viewed the structure of the jar by copying it to a zip file and opening
> the zip file.
>
> rpzExampleJar.jar
>         META-INFO
>                 MANIFIST.MF
>         rpgExample
>                 GetItem.class
>                 GetItem.jar
>                 Item.class
>                 Item.jar
>         folders for other projects in the Eclipse workspace.
>
>
> -----Original Message-----
> From: JAVA400-L <java400-l-bounces-+hD5IHI5Xscn3HwCXmMcX9BPR1lH4CV8@public.gmane.org> On Behalf Of Colin
> Williams
> Sent: Sunday, October 6, 2024 1:41 PM
> To: Java Programming on and around the IBM i <[email protected]
> >
> Subject: Re: Need help with RNX0301 error -- CLASSPATH or signature error
>
> So your code is looking for fully qualified rpgExample.Item.
>
> Is this inside your classes folder in your jar?
>
> On Sun, 6 Oct 2024, 17:25 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%7C9be6398fec314522b0db
> > 08dce636840b%7Ce3ff91d834c84b15a0b418910a6ac575%7C0%7C0%7C638638369036
> > 954146%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJ
> > BTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=dyiB4WIeuZshXfYBsbjClQN
> > sW1i%2Fjjdw5WvKwNDMQ8s%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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