RFR CODETOOLS-7902413: JFileChooserOperator - Filter file list based on accessible name instead of index

[Muneer Kolarkunnu]

Hi All,

Please review fix for the bug : https://bugs.openjdk.java.net/browse/CODETOOLS-7902413  

Webrev : http://cr.openjdk.java.net/~akolarkunnu/7902413/webrev.00/  

Description: It's error prone filtering based on index, so converting it in to accessible name.
Removed an unused import from DefaultDriverInstaller.java along with this fix.

Regards,
Muneer