Android 尝试从资产文件夹打开excel文件时出现异常

这段代码抛出了一个错误，但代码太简单了，我无法理解错误是什么（我不确定错误是什么-它只是导致android设备关闭，说它意外地不得不关闭）

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;

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确切的堆栈跟踪是什么？这是一个开放式GL应用程序。屏幕上没有显示关于堆栈的任何内容。如果您使用Eclipse，请转到您的logcat（窗口->显示视图->logcat）。如果出现异常，将打印stacktrace。此处需要：）。我似乎无法在此处复制并通过它-但第一个错误是“无法解析静态方法5434:Ljxl/workbook；。getworkbook“我似乎无法在此处复制并通过它”-高亮显示行并按Ctrl-C（或其他与OS X等效的键）。此外，请说明如何将Excel JAR添加到项目中。

 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;