BISERVER-10272 - fix checkstyle
BISERVER-10272 - Data Source Wizard - unable to fix field settings after error is found, buttons don't work.

Problem with disabling finish button was fixed in https://github.com/pentaho/data-access/commit/bb657696b5ca10801cd18892d8acfb15e959a5eb#diff-fbcb56c0ec45668fdd393afbcb17b551
But I was reproducing this issue by steps in description, I found 2 problems and fixed it:
1. After clecked Finish button "Overwrite datasource" dialog was showed up and was staying infinitely until I refreshed the page. After that datasource was not saved.
2. If I chosed "Customize model now" in "Data Source Created" dialog, dialog "Data Source Model Editor" was showed up. I closed it but in main dialog "Manage Data Sources" my created datasource was not appeared.
Merge pull request #577 from annapopova1/BISERVER-10272

BISERVER-10272 - Data Source Wizard - unable to fix field settings after error is found, buttons don't work.