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ERROR - jmeter.util.BeanShellInterpreter: Error invoking bsh method: eval Sourced file: inline evaluation of:

Getting below error when i run the jmeter script having Beanshell Post Processor as a child to a sampler.

ERROR - jmeter.util.BeanShellInterpreter: Error invoking bsh method: eval Sourced file: inline evaluation of: ``try { newuser= vars.get("prevUsrResponse"); org.json.JSONObject userJSON= new o . . . '' : Typed variable declaration : Class: org.json.JSONObject not found in namespace

Below is the code written and run in jMeter 2.9.

newuser= vars.get("prevUsrResponse");
org.json.JSONObject userJSON= new org.json.JSONObject(newuser);
if(prevUsrJSON.has("User") && custJSON.get("User")!= null) {
   org.json.JSONObject contactJSON = userJSON.getJSONObject("User");
  contactJSON.put("UserType","Private");
vars.put("updatedUser", userJSON.toString());
${updatedUser} variable doesn't return the json(or any value) when used in the next sampler request.
Download the jar i.e. from the Maven central repo
Copy it to JMeter's "lib" folder
Restart JMeter to pick the .jar up
You dont have the relevant import line. Add it to the beginning of your script:
import org.json.JSONObject;
You can also consider upgrading to JMeter 3.0 which comes with built-in JSON support and provides JSON Path PostProcessor to extract data from JSON responses. If you still want Beanshell - it is also possible, just use json-smart classes
                BeanShellPostProcessor fails in JMeter 3.0 with the same error as mentioned above. I cannot use JSON Path PostProcessor in my case.Please help
– Val
                Jun 17, 2016 at 8:09
        
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