Paint Border property is not honored for JButton.

Steps to reproduce

1. Unzip the attached file into c:\temp directory.
2. Compile and Run the attached test with the Nimbus Look and Feel
2. Try to uncheck the paint border checkbox, borders around all the 5 buttons should go away.
3. If you are able to view the border the bug is reproduced.

There is a related issue with the Content Filled property. This content filled should consider the draw/hide border property,

Right now, it is clearing the borders with the filled contents.