Exception in thread "AWT-EventQueue-0" java.lang.ExceptionInInitializerError

at com.mathworks.mde.filebrowser.FileViewTableModel$FileInfoItem.getIcon(FileViewTableModel.java:272)

at com.mathworks.mde.filebrowser.FileViewTableModel.getIconAt(FileViewTableModel.java:115)

at com.mathworks.mde.filebrowser.FileViewSortDecorator.getIconAt(FileViewSortDecorator.java:42)

at com.mathworks.mde.filebrowser.FileView$FileListTable$MyCellRenderer.buildColumn0Cell(FileView.java:5481)

at com.mathworks.mde.filebrowser.FileView$FileListTable$MyCellRenderer.getTableCellRendererComponent(FileView.java:5416)

at javax.swing.JTable.prepareRenderer(Unknown Source)

at javax.swing.plaf.basic.BasicTableUI.paintCell(Unknown Source)

at javax.swing.plaf.basic.BasicTableUI.paintCells(Unknown Source)

at javax.swing.plaf.basic.BasicTableUI.paint(Unknown Source)

at javax.swing.plaf.ComponentUI.update(Unknown Source)

at javax.swing.JComponent.paintComponent(Unknown Source)

at javax.swing.JComponent.paint(Unknown Source)

at javax.swing.JComponent.paintToOffscreen(Unknown Source)

at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source)

at javax.swing.RepaintManager$PaintManager.paint(Unknown Source)

at javax.swing.BufferStrategyPaintManager.paint(Unknown Source)

at javax.swing.RepaintManager.paint(Unknown Source)

at javax.swing.JComponent._paintImmediately(Unknown Source)

at javax.swing.JComponent.paintImmediately(Unknown Source)

at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)

at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)

at javax.swing.RepaintManager.seqPaintDirtyRegions(Unknown Source)

at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknown Source)

at java.awt.event.InvocationEvent.dispatch(Unknown Source)

at java.awt.EventQueue.dispatchEvent(Unknown Source)

at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.run(Unknown Source)

Caused by: java.lang.NullPointerException

at sun.awt.shell.Win32ShellFolder2.getFileSystemPath(Unknown Source)

at sun.awt.shell.Win32ShellFolder2.(Unknown Source)

at sun.awt.shell.Win32ShellFolderManager2.createShellFolderFromRelativePIDL(Unknown Source)

at sun.awt.shell.Win32ShellFolderManager2.createShellFolder(Unknown Source)

at sun.awt.shell.Win32ShellFolderManager2.createShellFolder(Unknown Source)

at sun.awt.shell.ShellFolder.getShellFolder(Unknown Source)

at com.mathworks.jmi.MLFileIconUtils.getNativeFileIcon(MLFileIconUtils.java:189)

at com.mathworks.jmi.MLFileIconUtils.getFileIcon(MLFileIconUtils.java:99)

at com.mathworks.mlwidgets.util.MatlabFileIconUtils.(MatlabFileIconUtils.java:21)

... 31 more

以上是错误代码！多谢指点！