Softgrid Control Service Client : "Error in uploading the case file ... Experiment 1\GSO_37Bus_dm.PWB"

[jgaspar99]

There's an error uploading the case file when trying to initialize the server in Softgrid Control Service Client.
Apparently, Jersey Grizzly web server is not able to encode the response in JSON format and eventually raises an HTTP 500 error.
Steps to reproduce the problem:

1. start the control service client : java -jar softgrid.jar ServiceClient
2. Select an experiment
3. Click on the first button (Play symbol) to initialize the server