Looks like some kind of Java internal bug, but opened issue to keep track of it...
java.lang.NullPointerException
...
at sun.awt.shell.Win32ShellFolderManager2.createShellFolder(Win32ShellFolderManager2.java:93)
...
at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installUI(WindowsFileChooserUI.java:149)
at javax.swing.JComponent.setUI(JComponent.java:666)
at javax.swing.JFileChooser.updateUI(JFileChooser.java:1836)
at javax.swing.JFileChooser.setup(JFileChooser.java:371)
at javax.swing.JFileChooser.(JFileChooser.java:343)
at javax.swing.JFileChooser.(JFileChooser.java:296)
at org.openmicroscopy.shoola.util.ui.filechooser.GenericFileChooser.(GenericFileChooser.java:103)
at org.openmicroscopy.shoola.agents.fsimporter.chooser.ImportDialog.initComponents(ImportDialog.java:703)
...
QA 37357
Looks like some kind of Java internal bug, but opened issue to keep track of it...