FileDialog getFile returns corrupted string after previous setFile

FULL PRODUCT VERSION :
java version " 1.7.0_25 "
Java(TM) SE Runtime Environment (build 1.7.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
When using FileDialog#setFile() with a long file name and then selecting a shorter file name in the dialog box subsequent #getFile() call returns a corrupted String consisting of the selected file plus parts of the string submitted to setFile.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
see: http://stackoverflow.com/questions/14972664/java-getfile-returns-incorrect-filename-after-using-setfile

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Filename selected in FileDialog dialog
ACTUAL -
Corrupted string consisting of selected file name of the string submitted to setFile

REPRODUCIBILITY :
This bug can be reproduced always.