jxl에서 getRow()를 사용하는 동안 널 포인터 예외가 발생했습니다.

JXL API를 사용하여 Java 코드를 작성한 후 excel &에서 데이터를 읽으려면 2D 배열 형태로 테이블을 반환하십시오. 읽을 수 jxl에서 getRow()를 사용하는 동안 널 포인터 예외가 발생했습니다.

엑셀 getRow()는 다음과 같이 내 코드는,

public String[][] getExcelData(String xlPath, String shtName)throws Exception 
{ 
    int ci,cj; 

    Workbook workbk = Workbook.getWorkbook(new File(xlPath)); 
    Sheet sht = workbk.getSheet(0); 


    Cell Start = sht.findCell("Start"); 
    System.out.println("Start cell found"); 
    Cell End = sht.findCell("End"); 

    int startRow = Start.getRow(); 
    System.out.println("start row number"+startRow); 
    int endRow = End.getRow(); 

    int startColumn = Start.getColumn(); 
    int endColumn = End.getColumn(); 

    /*rowCount = sht.getRows(); 
    colCount = sht.getColumns();*/ 
    int tableStartRow = startRow+1; 
    int tableStartColumn = startColumn+1; 

    int tableEndRow = endRow-1; 
    int tableEndColumn = endColumn-1; 

    //tabArray = new String[rowCount-1][colCount]; 
    tabArray = new String[tableEndRow-1][tableEndColumn-1]; 
    System.out.println("#row: " + rowCount); 
    System.out.println("#col: " + colCount); 

    ci=0; 

    for (int i=1;i<=tableEndRow-1;i++, ci++) 
    {    

     cj=0; 

     for (int j=1;j<=tableEndColumn-1;j++, cj++) 
     { 
      System.out.println("Ci ->"+ci+" & Cj ->"+cj); 
      System.out.println("i ->"+i+" & j ->"+j); 
      System.out.println("contents"+sht.getCell(j, i).getContents()); 
      tabArray[ci][cj]= sht.getCell(j, i).getContents(); 

      System.out.println("Value at"+ci+""+cj+"is ->"+tabArray[ci][cj]+"\n"); 

     } 
    } 
    return (tabArray); 
} 



Start cell found 
SKIPPED: Test 
java.lang.RuntimeException: java.lang.NullPointerException 
at org.testng.internal.MethodInvocationHelper.invokeDataProvider  MethodInvocationHelper.java:161) 
at org.testng.internal.Parameters.handleParameters(Parameters.java:429) 
at org.testng.internal.Invoker.handleParameters(Invoker.java:1383) 
at org.testng.internal.Invoker.createParameters(Invoker.java:1075) 
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1180) 
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127) 
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111) 
at org.testng.TestRunner.privateRun(TestRunner.java:767) 
at org.testng.TestRunner.run(TestRunner.java:617) 
at org.testng.SuiteRunner.runTest(SuiteRunner.java:334) 
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329) 
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291) 
at org.testng.SuiteRunner.run(SuiteRunner.java:240) 
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52) 
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86) 
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224) 
at org.testng.TestNG.runSuitesLocally(TestNG.java:1149) 
at org.testng.TestNG.run(TestNG.java:1057) 
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:111) 
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:204) 
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:175) 
Caused by: java.lang.NullPointerException 
at DataProvider.DataSource.getExcelData(DataSource.java:39) 
at DataProvider.DataSource.getLoginData(DataSource.java:84) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
at java.lang.reflect.Method.invoke(Unknown Source) 
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84) 
at org.testng.internal.MethodInvocationHelper.invokeDataProvider (MethodInvocationHelper.java:135) 
... 20 more

를 사용하는 동안 내가 널 포인터 예외를 받고 있어요 것은 - enter image description here