Null value for KafkaProducerSampler.java class and unable to load jar in Jmeter

[dhananjay1308]

I have created original-kloadgen-5.3.1.jar from the steps given in readme but when I checked in decompiler com.sngular.kloadgen.sampler.KafkaProducerSampler.java is having null value.
Please check attachment (original-kloadgen-5.3.1.txt) please change extension from txt to jar .

Also from the 5th step given on https://github.com/sngular/kloadgen/wiki/how-to-run#how-to-run-a-test-plan I have restarted jmeter after placing jar file under JMETER_HOME/lib/ext directory but still can't see com.sngular.kloadgen.sampler.KafkaProducerSampler under the dropdown.

Can someone please re-verify the given steps are correct?

original-kloadgen-5.3.1.txt

[josemenvegsngular]

Hi, @dhananjay1308 ,

Reviewing what you say, I think that you have copied the wrong file.

You can review it under installation, it says:
Once the installation is complete, copy target/kloadgen-<version>.jar file to the JMETER_HOME/lib/ext directory.
The previous step create two files:

• kloadgen-5.3.1.jar: 49,7 MB (the correct one)
• original-kloadgen-5.3.1.jar: 299,6 kB the one that you have copied

Please, copy the first one, and tell us if it solve your problem (or not).

[dhananjay1308]

Hi @josemenvegsngular

Sorry for uploading wrong file here , Yes the correct file generated was 49.7 MB. I placed it under JMETER_HOME/lib/ext but still I was not able to locate com.sngular.kloadgen.sampler.KafkaProducerSampler as mentioned in step#5 here -->https://github.com/sngular/kloadgen/wiki/how-to-run#how-to-run-a-test-plan.

After updating JMETER_HOME/bin/user.properties with required classpath -
user.classpath=/Users/dhananjayshinde/Documents/apache-jmeter-5.1.1/lib/ext/kloadgen-5.3.1.jar it was loaded.

So just in case someone faces similar issue try updating user.properties with required classpath.

Thanks I will keep updating if I face any further issues.

[josemenvegsngular]

Hi @dhananjay1308

So you say that your doesn't see something like this:
or it has been solved when you have updated the properties.

I haven't got the properties file modified (may be it's an OS issue, I'm in a linux).

Or that I'm calling jmeter.sh from it's own folder (and I don't need to update the path).

[dhananjay1308]

Hi @josemenvegsngular

Yes I saw this only after updating user.properties explicitly not sure may be some version compatibility issue, Thanks a lot for your quick help here.