TBD-1170 fix bug: Cannot check an impala connection in the wizard
https://jira.talendforge.org/browse/TBD-1170
TBD-1170 fix bug: Cannot check an impala connection in the wizard
https://jira.talendforge.org/browse/TBD-1170

Fix bug: When click "Finish" or do the retrieve schema there is still
the exception.