JFileChooser - allowing to create a directory on a deleted directory

JFileChooser - allowing to create a directory on a deleted directory (deleted using the native Explorer).

1. Open JFileChooser demo
2. Open the Explorer
3. Create the directory hirarchy for testing from the explorer c:\testDir\dir1\dir2
4. From the JFileChooser browse to the directory dir2.
5. Now delete the dir1 from the native Explorer.
6. Switch to the JFileChooser demo, and try creating a directory dir3 (with parent dir2)

Expected:

Before creating a directory, JFileChooser should check whether the parent exists.

Actual:

JFileChooser is not checking whether the parent directory exists and creating the <New Folder> on the deleted dir1/dir2. And it is also recreating the whole hirerarchy again including the parent directories for the <New Folder> dir1 --> dir2.

Noticed in b104, but was reproduceable in b59. Did any go back further considering the nature of this bug and other pending bugs on JFileChooser.