读取.tab文件时出现NullPointerException

Question

我正在尝试读取.tab文件，但是收到NullPointerException错误。

Exception in thread "main" java.lang.NullPointerException
    at project.FTAFileReader.<init>(FTAFileReader.java:37)
    at project.FTAFileReader.main(FTAFileReader.java:103)

请找到以下代码

public FTAFileReader(){

    try {
            BufferedReader buffer;
            buffer = new BufferedReader(new FileReader("event_trace.tab"));                     
            buffer.readLine(); //Skips the first line of the file. 
            String currentstr;
            while((currentstr=buffer.readLine().trim()) != null){
                String[] column = currentstr.split("\\s+");         

                if(column.length>0){
                    //hostID.add(Long.parseLong(column[0]));
                    eventID.add(Integer.parseInt(column[0]));
                    componentID.add(Integer.parseInt(column[1]));
                    nodeID.add(Integer.parseInt(column[2]));
                    platformID.add(Integer.parseInt(column[3]));
                    nodeName.add(Double.parseDouble(column[4]));
                    eventType.add(Integer.parseInt(column[5]));
                    eventStartTime.add(Long.parseLong(column[6]));
                    eventStopTime.add(Long.parseLong(column[7]));
                    eventEndReason.add(Integer.parseInt(column[8]));                    

                }               

            }
        }
         catch (IOException e) {
            e.printStackTrace();
            System.out.println("The simulation has been terminated due to an IO error");
        }       
}

任何帮助都会非常值得注意。提前谢谢。

Yogesh Sharma