Null Pointer error when setting map variable after conditional event

I am having a problem when setting a process variable on a script task after a conditional event. I have tried placing the script task before the conditional event and it worked however when I placed it back after the conditional event it returned a null pointer exception on the kcontext.setVariable call.

Error occurs when script is placed in the onEntry event of a user Task as well.

The model

The Script on Prepare Data

java.util.Map map = new java.util.HashMap<String, String>();
map.put(" melissa", "melissa");
map.put(" dan", "dan");
map.put("alex", "alex");



java.util.List<String> keys = new java.util.ArrayList<String>(map.keySet());
for (String key: keys) {
    System.out.println(key + ": " + map.get(key));
}
kcontext.setVariable("myMap",map);
//kcontext.setVariable("abc",new java.util.HashMap());

System.out.println(">>>>>> finished");

I have attached a copy of the error log.