[GSS](6.4.z) Unable to open a process definition in editor mode in business-central 6.4.6 if On Exit/Entry Script field is empty

1. Install JBDS 11.1; 2. Install Drools and jBPM Plug-in; 3. Created a jBPM project from Wizard and added an User Task; 4. In User Task - On Entry and On Exit Script fields, add a simple java code such as: System.out.println("Hi"); 5. Save process definition; 6. Delete text in on entry/exit script fields; 7. Save process definition.; 8. Observe in the xml an empty on entry/exit script tag such as: ~~~ <tns:onEntry-script scriptFormat="http://www.java.com/java"/> ~~~ Note that this tag declares the scriptFormat but does not have a subsequent <script> tag. This will cause an error when viewing the process diagram in business central. 9. Upload it to business-central and try to open it.