I've been developing an app for a long time which has been working fine till lately the design of the swing component's got worse or maybe turned into an older version (You can see the difference in the header of the two images and the JCalender design which is a imported jarfile).
I've tryed creating a new project and copying the source into it still it stay's the same .
So could someone inform me what may be the reason of this happenening ?
The internal frame with the bad design.
The internal frame before this design change happened (How it used to look like).