NullPointerException in DoSAttack2 example with CEP

Question

I'm using CEP (cep-r5.4.3-img) for the DoSAttack2.json example and when I try to make a POST like this: http://public_IP:8080/ProtonOnWebServer/rest/events with Headers = Content-Type : application/json Body = { "Name":"TrafficReport", "volume":"1000" }

I've got this error:

INFO: started event message body reader
Jan 07, 2017 10:58:50 AM com.ibm.hrl.proton.webapp.providers.EventJSONMessageReader readFrom
INFO: name value: TrafficReport looking for: Name
Jan 07, 2017 10:58:50 AM com.ibm.hrl.proton.webapp.providers.EventJSONMessageReader readFrom
SEVERE: Could not parse json event java.lang.NullPointerException, reason: null

Could you help me?

Regards,

Pasquale

Answer 1

To address the exact issue I would need the Tomcat logs (catalina.out), specifically the part where the Proton application has initialization messages.

A condition like this usually arises when the application is not initialized properly - there is an error in the definition file for example and therefore the configuration is not loaded, or the paths to the configuration are not defined properly.

To diagnose exactly though I would require the log file.