*** Description of problem:
Process variables are not loaded in to the "MI data input" and "MI data output" combo boxes.


*** Version-Release number of selected component (if applicable):
kie-wb-distribution-wars-6.3.0-20150914.105450-820-eap6_4.war


*** Steps to Reproduce:
1. Create new process
2. Define process variables, inColl:java.util.ArrayList, amount:Integer
3. Create MI user task in process [MITASK]
4. Set inColl as "MI collection input" for MITASK
5. Try to set amount as "MI data input"


*** Actual results:
In step 5. there is no variable loaded in this combo box


*** Expected results:
In step 5. there is variable amount loaded in this combo box


The same situation for "MI data output"