尝试从Assets文件夹中打开Excel文件时出现异常

Question

此代码抛出一个错误，但代码很简单，我无法理解什么是错误的（我不确定是什么错误 - 它只是导致Android设备关闭说它意外地不得不关闭）

public static void load(Context context){

    InputStream is;
    AssetManager am = context.getAssets();
    try {
        is = am.open("lake1ex.xls");
        Workbook w= Workbook.getWorkbook(is);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (BiffException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

错误日志：

 02-21 12:39:46.358: W/ActivityNative(20745): send
 ACTIVITY_IDLE_TRANSACTION 02-21 12:39:50.748: W/dalvikvm(20745): VFY:
 unable to resolve static method 5434: Ljxl/Workbook;.getWorkbook
 (Ljava/io/InputStream;)Ljxl/Workbook; 02-21 12:39:50.748:
 W/dalvikvm(20745): VFY: unable to resolve exception class 859
 (Ljxl/read/biff/BiffException;) 02-21 12:39:50.748: W/dalvikvm(20745):
 VFY: unable to find exception handler at addr 0x13 02-21 12:39:50.748:
 W/dalvikvm(20745): VFY: rejected Lcom/example/dcarp/LoadLake;.load
 (Landroid/content/Context;)V 02-21 12:39:50.748: W/dalvikvm(20745):
 VFY: rejecting opcode 0x0d at 0x0013 02-21 12:39:50.748:
 W/dalvikvm(20745): VFY: rejected Lcom/example/dcarp/LoadLake;.load
 (Landroid/content/Context;)V 02-21 12:39:50.748: W/dalvikvm(20745):
 Verifier rejected class Lcom/example/dcarp/LoadLake;