Posted: January 15, 2013 21:27 by random_user
Hi, I´m trying to use the ModelService to retrieve data from a workflow.
When I create a ModelService object and call a method i get a null pointer exception. I tried to use the importModel method to import my workflow but it didn´t work because of a wrong InputStream parameter.
So my questions is what is the cause of the null pointer exception and if the importModel method solves the exception, how do you use it?
thank you for your help