NoClassDefFoundError:org/jetel/connection/jdbc/ConnectionAct

Hi, I have created graphs in my sandbox in CloverETL server and they were running fine for some time but suddenly I am getting below error now:

java.lang.NoClassDefFoundError: org/jetel/connection/jdbc/ConnectionAction
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)

I can see that the class file is available in jar “/webapps/clover/WEB-INF/plugins/org.jetel.connection”

Please let me know how to solve this issue.

Hi chaitanya_r,

I have a few questions if I may:

1. Did you modify somewhow this jar file?
2. Can you post a minimal sample graph failing with this error?
3. Under what circumstances this error appears? Can you please describe the whole process leading to this error? And copy the whole stack trace?
4. Did you try to restart your application server?
5. Does this error appear just in some specific graph or some other graphs also throw some similar error?

Thanks in advance.

Best regards,