java.lang.NullPointerException at javax.swing.filechooser.FileSystemView.getSystemDisplayName(FileSystemView.java:160) at javax.swing.plaf.basic.BasicFileChooserUI$BasicFileView.getName(BasicFileChooserUI.java:1164) at javax.swing.JFileChooser.getName(JFileChooser.java:1472) at com.sun.java.swing.plaf.windows.WindowsFileChooserUI$DirectoryComboBoxRenderer.getListCellRendererComponent(WindowsFileChooserUI.java:923) at com.sun.java.swing.plaf.windows.WindowsComboBoxUI.paintCurrentValue(WindowsComboBoxUI.java:251) at javax.swing.plaf.basic.BasicComboBoxUI.paint(BasicComboBoxUI.java:850) at com.sun.java.swing.plaf.windows.WindowsComboBoxUI.paint(WindowsComboBoxUI.java:182) at javax.swing.plaf.ComponentUI.update(ComponentUI.java:142) at javax.swing.JComponent.paintComponent(JComponent.java:743) at javax.swing.JComponent.paint(JComponent.java:1006) at javax.swing.JComponent.paintChildren(JComponent.java:843) at javax.swing.JComponent.paint(JComponent.java:1015) at javax.swing.JComponent.paintChildren(JComponent.java:843) at javax.swing.JComponent.paint(JComponent.java:1015) at javax.swing.JComponent.paintChildren(JComponent.java:843) at javax.swing.JComponent.paint(JComponent.java:1015) at javax.swing.JComponent.paintChildren(JComponent.java:843) at javax.swing.JComponent.paint(JComponent.java:1015) at javax.swing.JLayeredPane.paint(JLayeredPane.java:559) at javax.swing.JComponent.paintChildren(JComponent.java:843) at javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4979) at javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4925) at javax.swing.JComponent.paint(JComponent.java:996) at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:21) at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:60) at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:97) at java.awt.Container.paint(Container.java:1709) at sun.awt.RepaintArea.paintComponent(RepaintArea.java:248) at sun.awt.RepaintArea.paint(RepaintArea.java:224) at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:254) at java.awt.Component.dispatchEventImpl(Component.java:4060) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Window.dispatchEventImpl(Window.java:1791) at java.awt.Component.dispatchEvent(Component.java:3819) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:153) at java.awt.Dialog$1.run(Dialog.java:535) at java.awt.Dialog$2.run(Dialog.java:565) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.awt.Dialog.show(Dialog.java:563) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:834) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:868) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:856) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:104) at org.openide.util.Mutex$1AWTWorker.run(Mutex.java:1370) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199) at java.awt.EventQueue.dispatchEvent(EventQueue.java:461) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:153) at java.awt.Dialog$1.run(Dialog.java:535) at java.awt.Dialog$2.run(Dialog.java:565) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.awt.Dialog.show(Dialog.java:563) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:834) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:868) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:856) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:104) at org.openide.util.Mutex.doEventAccess(Mutex.java:1355) at org.openide.util.Mutex.readAccess(Mutex.java:268) at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:841) at java.awt.Component.show(Component.java:1302) at java.awt.Component.setVisible(Component.java:1255) at org.netbeans.core.NotifyExcPanel.updateState(NotifyExcPanel.java:379) at org.netbeans.core.NotifyExcPanel.access$400(NotifyExcPanel.java:91) at org.netbeans.core.NotifyExcPanel$2.run(NotifyExcPanel.java:311) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:461) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:153) at java.awt.Dialog$1.run(Dialog.java:535) at java.awt.Dialog$2.run(Dialog.java:565) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.awt.Dialog.show(Dialog.java:563) at javax.swing.JFileChooser.showDialog(JFileChooser.java:717) at javax.swing.JFileChooser.showOpenDialog(JFileChooser.java:620) at org.netbeans.modules.autoupdate.ui.LocalDownloadSupport.chooseNbmFiles(LocalDownloadSupport.java:108) at org.netbeans.modules.autoupdate.ui.UnitTab$AddLocallyDownloadedAction.performerImpl(UnitTab.java:1562) at org.netbeans.modules.autoupdate.ui.UnitTab$TabAction.actionPerformed(UnitTab.java:883) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.Component.processMouseEvent(Component.java:5517) at javax.swing.JComponent.processMouseEvent(JComponent.java:3135) at java.awt.Component.processEvent(Component.java:5282) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3984) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3819) at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1791) at java.awt.Component.dispatchEvent(Component.java:3819) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)