java.lang.NoClassDefFoundError:JVideoOCR

公共类JVideoOCR扩展了可观察性 { 公共静态最终int状态\u文件\u已删除=1

public native boolean init();

public native boolean terminate();
public native boolean startRead();
public native boolean stopRead();

static { 

    System.loadLibrary("JVideoOCR"); }

IOCRDataHandler dataHandler = null;

public void setOCRDataHandler(IOCRDataHandler handler)
{
    dataHandler = handler;
}

public void MRZDataCallback(MRZData data)
{
    if (dataHandler != null)
        dataHandler.handleOCRData(data);
}


private void returnStatus(int status)
{
    switch (status)
    {
    case STATUS_DOCUMENT_REMOVED:
        setChanged() ;
        notifyObservers(new Integer(2)) ;
        break;
    }
}

}

这段代码在将java文件编译成默认包时运行良好，但如果我将此java文件转换成包，它将不起作用