程序导出为jar后怎么运行就报错了

java.lang.NullPointerException
        at com.sy.view.NewJFrame.initGUI(NewJFrame.java:245)
        at com.sy.view.NewJFrame.<init>(NewJFrame.java:237)
        at com.sy.view.NewJFrame$1.run(NewJFrame.java:226)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatc
ad.java:269)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchTh
java:184)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatc
ad.java:174)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)                243     File file=new File("info");
244 String[] name=file.list();
245 for(String x:name){
if(x.indexOf(".xml")!=-1){
String[] a=x.split("\\.");
mobanString.add(a[0]);
}

}245错误时那里，是不是导出jar后路径都错了？那要怎么改