Linking OO Cobol gives "GetClassObject UNRESOLVED" error



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Re: Linking OO Cobol gives "GetClassObject UNRESOLVED" error

Postby Robert Sample » Mon Sep 27, 2010 7:25 pm

I think you must be the only one -- at least on this board -- trying to get the example running.

I did some more testing and by tweaking the CLASSPATH, LIBPATH, and PATH variables I got past the error you're seeing. However, I am getting a version error on HelloJ.class and have not been able to get past it.
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Re: Re: Linking OO Cobol gives "GetClassObject UNRESOLVED" error

 

Re: Linking OO Cobol gives "GetClassObject UNRESOLVED" error

Postby Robert Sample » Thu Oct 14, 2010 1:01 am

Are you still working on this? I managed to get the manual program running by setting the PATH, CLASSPATH, and LIBPATH variables. You need to run the sample code from its own directory under your home directory.
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Re: Linking OO Cobol gives "GetClassObject UNRESOLVED" error

Postby LotharLochkarte » Thu Oct 14, 2010 2:24 pm

Yes, I am still working on this.

Nice to hear that you have been successfull! :-)

I am trying to execute the COBOL program with the following JCL:
//ABCEXEC JOB XXXX,ABC,CLASS=2,REGION=200M,MSGCLASS=X
//GO EXEC PGM=COBOLOO,
// PARM='/ENVAR("_CEE_ENVFILE=/u/myuserid/ENV")
// POSIX(ON)'
//STEPLIB DD DSN=myuserid.USER.LOADLIB.PDSE,DISP=SHR
// DD DSN=SYS1.CEE.SCEERUN2,DISP=SHR
// DD DSN=SYS1.CEE.SCEERUN,DISP=SHR
//SYSOUT DD SYSOUT=*
//CEEDUMP DD SYSOUT=*
//CEEOPTS DD *
XPLINK(ON)
//SYSUDUMP DD DUMMY
//JAVAOUT DD PATH='/u/myuserid/javaout'

The ENV-file contains the following:
PATH=/bin:/usr/lpp/java/J5.0/bin.
LIBPATH=/lib:/usr/lib:/usr/lpp/java/J5.0/bin:/usr/lpp/java/J5.0/bin/j9vm:/u/myuserid
CLASSPATH=/u/myuserid/classes:/u/myuserid:/u/myuserid/

Could you please explain to me, what you mean with "running the sample code from its own directory under my home directory"?

Thank you very much in advance!

Best regards!
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Re: Linking OO Cobol gives "GetClassObject UNRESOLVED" error

Postby Robert Sample » Thu Oct 14, 2010 5:50 pm

I logged into OMVS (the Unix System Services command line shell). I created a directory of tsthello and set the working directory to it. I copied tsthello.cbl from the manual, and then copied HelloJ.java from the manual. I then created a compile script of
export COBJVMINITOPTIONS="-Xms10000000 -Xmx20000000 -verbose:gc"
cob2 -c -qdll,thread -I/usr/lpp/cobol/include/ tsthello.cbl
cob2 -V -bdll -o libtsthello.so tsthello.o \
 /usr/lpp/java/J5.0/bin/j9vm/libjvm.x \
 /usr/lpp/cobol/lib/igzcjava.x >tsthello.link.lst
javac HelloJ.java
and ran it to create libtsthello.so

I then created the execution script of
export CLASSPATH=$CLASSPATH:/u/tech/ttssrs0/tsthello/HelloJ.class
export CLASSPATH=$CLASSPATH:/u/tech/ttssrs0/tsthello/
export   LIBPATH=$LIBPATH:/usr/lpp/java/J5.0/bin/j9vm/
export   LIBPATH=$LIBPATH:/usr/lpp/java/J5.0/bin/
export   LIBPATH=$LIBPATH:/u/tech/ttssrs0/tsthello/
export   LIBPATH=$LIBPATH:/usr/lpp/java/J5.0/
export      PATH=$PATH:/u/tech/ttssrs0/tsthello/
export      PATH=$PATH:/usr/lpp/java/J5.0/bin/
export      PATH=$PATH:/usr/lpp/java/J5.0/
export JAVA_HOME=/usr/lpp/java/J5.0
# set
./libtsthello.so
which executed and produced
TTSSRS0:/u/tech/ttssrs0/tsthello: >./tsthello.sh
COBOL program TSTHELLO entered
Hello World, from Java!
Returned from java sayHello to TSTHELLO

While it may be possible to do this from a batch job, it would require a good bit of experimentation to get everything just right -- the batch environment does not have the same set up as the interactive environment. I suspect you may need to compile and link, then execute BPXBATCH to actually run the program.
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Re: Linking OO Cobol gives "GetClassObject UNRESOLVED" error

Postby LotharLochkarte » Thu Oct 14, 2010 10:06 pm

Thanks for your reply, I will try it out in a few days. :-)

But if I use BPXBATCH to start the program COBOLOO, this program runs under control of the USS, doesn't it?

My hope was - and still is :-) - to get this program running under IMS.

Or do you know conceptional obstructions that would prevent this plan?
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Re: Linking OO Cobol gives "GetClassObject UNRESOLVED" error

Postby Robert Sample » Fri Oct 15, 2010 8:07 pm

Try your job after changing ENV to:
PATH=/bin:/usr/lpp/java/J5.0/bin.
LIBPATH=/lib:/usr/lib:/usr/lpp/java/J5.0/bin:/usr/lpp/java/J5.0/bin/j9vm:/u/myuserid
CLASSPATH=/u/myuserid/classes:/u/myuserid/HelloJ.class:/u/myuserid/
JAVA_HOME=/usr/lpp/java/J5.0
where CLASSPATH poitns to the indicated file or /u/myuserid/classes/HelloJ.class -- wherever you compiled the Java code into a class.
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Re: Linking OO Cobol gives "GetClassObject UNRESOLVED" error

Postby LotharLochkarte » Mon Oct 25, 2010 12:46 pm

I still get the "exception in thread 'main'" message...

Do you know a way to get more information about this error? Is there a logfile or something like that?
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Re: Linking OO Cobol gives "GetClassObject UNRESOLVED" error

Postby Robert Sample » Mon Oct 25, 2010 8:46 pm

I got rid of the Exception in thread "main" error by changing the PATH, CLASSPATH, and LIBPATH environment variables. I never found anything that would provide detailed data about what the problem was, however -- that error message was all that came out.
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Re: Linking OO Cobol gives "GetClassObject UNRESOLVED" error

Postby LotharLochkarte » Tue Oct 26, 2010 12:32 pm

After adding "/u/myuserid/Hello1.class" to LIBPATH I am getting the following ABEND:

"CEE3512S An HFS load of module IGZCJAVA failed. The system return
code was 0000000135; the reason code was 0594003C."

I believe that took me a step further... :-)
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Re: Linking OO Cobol gives "GetClassObject UNRESOLVED" error

Postby LotharLochkarte » Tue Oct 26, 2010 12:47 pm

Oh shit, shame on me, this message only means that some component of the path being loaded is not a directory.... Clearly....
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