java filechooser问题

vista 操作系统
public class DirectoryChoose extends JFileChooser { public DirectoryChoose(Component parent,String title) {
super(System.getProperty("user.dir"));
setFileSelectionMode(DIRECTORIES_ONLY );
setDialogTitle(title);
showOpenDialog(parent);
}
}运行到 super(System.getProperty("user.dir")); 
就出错了Exception occurred during event dispatching:
java.lang.RuntimeException: java.io.IOException: Could not get shell folder ID list
at sun.awt.shell.Win32ShellFolderManager2$ComInvoker.invoke(Win32ShellFolderManager2.java:506)
at sun.awt.shell.Win32ShellFolder2.getFileSystemPath(Win32ShellFolder2.java:563)
at sun.awt.shell.Win32ShellFolderManager2.getPersonal(Win32ShellFolderManager2.java:137)
at sun.awt.shell.Win32ShellFolder2$10.call(Win32ShellFolder2.java:658)
at sun.awt.shell.Win32ShellFolder2$10.call(Win32ShellFolder2.java:645)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at sun.awt.shell.Win32ShellFolderManager2$ComInvoker$3.run(Win32ShellFolderManager2.java:458)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.io.IOException: Could not get shell folder ID list
at sun.awt.shell.Win32ShellFolder2.getFileSystemPath0(Native Method)
at sun.awt.shell.Win32ShellFolder2.access$900(Win32ShellFolder2.java:55)
at sun.awt.shell.Win32ShellFolder2$8.call(Win32ShellFolder2.java:565)
at sun.awt.shell.Win32ShellFolder2$8.call(Win32ShellFolder2.java:563)
at sun.awt.shell.Win32ShellFolderManager2$ComInvoker.invoke(Win32ShellFolderManager2.java:491)
... 10 more