android程序的java致命异常

Question

当我运行下面的代码时出现以下异常。这是一个android代码，用于访问远程windows pc。它用于下载、上传和删除。当我运行这段代码时，它会抛出验证异常。但我不知道实际的错误。有人可以找到错误吗？

05-08 11:51:25.885: E/AndroidRuntime(517): FATAL EXCEPTION: main
05-08 11:51:25.885: E/AndroidRuntime(517): java.lang.VerifyError: com.android.test.t
05-08 11:51:25.885: E/AndroidRuntime(517):  at java.lang.Class.newInstanceImpl(Native Method)
05-08 11:51:25.885: E/AndroidRuntime(517):  at java.lang.Class.newInstance(Class.java:1409)
05-08 11:51:25.885: E/AndroidRuntime(517):  at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
05-08 11:51:25.885: E/AndroidRuntime(517):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1561)
05-08 11:51:25.885: E/AndroidRuntime(517):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
05-08 11:51:25.885: E/AndroidRuntime(517):  at android.app.ActivityThread.access$1500(ActivityThread.java:117)
05-08 11:51:25.885: E/AndroidRuntime(517):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
05-08 11:51:25.885: E/AndroidRuntime(517):  at android.os.Handler.dispatchMessage(Handler.java:99)
05-08 11:51:25.885: E/AndroidRuntime(517):  at android.os.Looper.loop(Looper.java:123)
05-08 11:51:25.885: E/AndroidRuntime(517):  at android.app.ActivityThread.main(ActivityThread.java:3683)
05-08 11:51:25.885: E/AndroidRuntime(517):  at java.lang.reflect.Method.invokeNative(Native Method)
05-08 11:51:25.885: E/AndroidRuntime(517):  at java.lang.reflect.Method.invoke(Method.java:507)
05-08 11:51:25.885: E/AndroidRuntime(517):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
05-08 11:51:25.885: E/AndroidRuntime(517):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
05-08 11:51:25.885: E/AndroidRuntime(517):  at dalvik.system.NativeStart.main(Native Method)

代码:

package com.android.test;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.ArrayList;
import jcifs.smb.NtlmPasswordAuthentication;
import jcifs.smb.SmbException;
import jcifs.smb.SmbFile;
import jcifs.smb.SmbFileInputStream;
import jcifs.smb.SmbFileOutputStream;
import android.app.ListActivity;
import android.content.Context;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.os.StatFs;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

class Helper extends AsyncTask<Integer, Void, Void> 
{
//  private t one=new t();
    private SmbFile dfile;
    private String dfilepath;
    private SmbFile dfolder;
    private String dfolderpath;
    private File ufolder;
    private SmbFile ufoldersmb;
    private NtlmPasswordAuthentication auth;
    private int upstate=0;
    private int downstate=0;
    private Context context;
    private ArrayList<SmbFile> smbArray=new ArrayList<SmbFile>();
    private String ext;
    private int tasknumber;
    private String taskname;
    public Context getcontext()
    {
        return context;
    }
    public int gettasknumber()
    {
        return tasknumber;
    }
    public String gettaskname()
    {
        return taskname;
    }
    public int getupstate() 
    {
        return upstate;
    }
    public int getdownstate() 
    {
        return downstate;
    }
    public void setdfile(SmbFile a) 
    {
        this.dfile = a;
    }
    public void setdfilepath(String b) 
    {
        this.dfilepath = b;
    }
    public void setdfolder(SmbFile c) 
    {
        this.dfolder = c;
    }
    public void setdfolderpath(String d) 
    {
        this.dfolderpath = d;
    }
    public void setufolder(File g) 
    {
        this.ufolder = g;
    }
    public void setufoldersmb(SmbFile h) 
    {
        this.ufoldersmb = h;
    }
    public void setauthentication(NtlmPasswordAuthentication i) 
    {
        this.auth = i;
    }
    public void setupstate(int j) 
    {
        upstate = j;
    }
    public void setdownstate(int k) 
    {
        downstate = k;
    }
    public void setcontext(Context l) 
    {
        context = l;
    }
    public void setarraysmb(SmbFile m) 
    {
        this.smbArray.add(m);
    }
    public void setextstorage(String n) 
    {
        this.ext=n;
    }
    public void settasknumber(int o) 
    {
        this.tasknumber=o;
    }
    public void settaskname(String p) 
    {
        this.taskname=p;
    }
    @Override
    protected Void doInBackground(Integer... params) 
    {
        //check flag to execute exactly method
        switch (params[0]) 
        {
            case 0:
                downloadTask();
                break;
            case 1:
                //Toast.makeText(context, "AccessPC Upload task "+tasknumber+" Started", Toast.LENGTH_LONG).show();
                uploadFolder(ufolder,ufoldersmb);
                break;
            default:break;
        }
        return null;
    }
    void downloadFile(SmbFile dfile,String dpath)
    {   
        StatFs statFs = new StatFs(Environment.getExternalStorageDirectory().getAbsolutePath()); 
        long blockSize = statFs.getBlockSize();
        long freeSize = statFs.getFreeBlocks()*blockSize;
        try
        {
            if(!((freeSize-dfile.length())<0))
            {
                SmbFileInputStream din=new SmbFileInputStream(dfile);
                FileOutputStream dout=new FileOutputStream(dpath);
                int c;
                while((c=din.read())!=-1)
                {
                    dout.write(c);
                }
                if (din != null) 
                {
                    din.close();
                }
                if (dout != null) 
                {
                    dout.close();
                }
            }
            else
            {
                //Toast.makeText(context, "AccessPC Download Task failed ",Toast.LENGTH_LONG).show();
            }
        }
        catch(Exception e)
        {
            //Toast.makeText(context, "AccessPC Download Task failed "+e,Toast.LENGTH_LONG).show();
        }
    }
    void downloadFolder(SmbFile dfolder,String dfolderpath)
    {
        try 
        {
            dfolderpath=dfolderpath+dfolder.getName();
            if(!(new File(dfolderpath)).exists())
            {
                (new File(dfolderpath)).mkdir();
            }
            SmbFile[] temp=dfolder.listFiles(); 
            if(temp.length==0)
            {
                return;
            }
            for(SmbFile m:temp)
            {
                if(m.isFile())
                {
                    downloadFile(m,dfolderpath+m.getName());
                }
                else
                {
                    downloadFolder(m,dfolderpath);
                }
            }
        } 
        catch (Exception e) 
        {
            //Toast.makeText(context, "AccessPC Download Task failed "+e,Toast.LENGTH_LONG).show();
        }
    }
    void uploadFile(File ufile,SmbFile ufilesmb)
    {
        try
        {
            FileInputStream uin=new FileInputStream(ufile);
            SmbFile tempSmb=new SmbFile(ufilesmb.getPath()+ufile.getName(),auth);
            SmbFileOutputStream uout=new SmbFileOutputStream(tempSmb);
            int c;
            while((c=uin.read())!=-1)
            {
                uout.write(c);
            }
            if (uin != null)
            {
                uin.close();
            }
            if (uout != null) 
            {
                uout.close();
            }
        }
        catch(Exception e)
        {
            //Toast.makeText(context, "AccessPC Upload Task failed "+e, Toast.LENGTH_LONG).show();
        }
    }
    void uploadFolder(File ufolder,SmbFile ufoldersmb)
    {
        try 
        {
            SmbFile tempSmb=new SmbFile(ufoldersmb.getPath()+ufolder.getName()+"/",auth);
            if(!tempSmb.exists())
            {
                tempSmb.mkdir();
            }
            File[] ftemp=ufolder.listFiles();
            if(ftemp.length==0)
            {
                setupstate(2);
                return;
            }
            for(File m:ftemp)
            {
                if(m.isFile())
                {
                    uploadFile(m,tempSmb);
                }
                else
                {
                    uploadFolder(m,tempSmb);
                }
            }
        } 
        catch (Exception e) 
        {
            //Toast.makeText(context, "AccessPC Upload Task failed "+e,Toast.LENGTH_LONG).show();
        }
    }
    void downloadTask()
    {
        //Toast.makeText(context, "AccessPC download task "+tasknumber+" Started", Toast.LENGTH_LONG).show();
        try 
        {
            for(SmbFile m:smbArray)
            {
                if(m.isFile())
                {       
                    setdfile(m);
                    setdfilepath(ext+m.getName());
                    downloadFile(dfile,dfilepath);
                }
                else
                {
                    setdfolder(m);
                    setdfolderpath(ext);
                    downloadFolder(dfolder,dfolderpath);
                }
            } 
            setdownstate(2);
        }
        catch (Exception e) 
        {
            //Toast.makeText(context,"Download error "+e,Toast.LENGTH_LONG).show();
        }
    }   
    @Override
    protected void onPostExecute(Void result) 
    {
        if(upstate==2)
        {
            setupstate(0);
            //Toast.makeText(context, "AccessPC "+taskname+" task "+tasknumber+" Finished", Toast.LENGTH_LONG).show();
        }
        if(downstate==2)
        {
            setdownstate(0);
            //Toast.makeText(context, "AccessPC "+taskname+" task "+tasknumber+" Finished", Toast.LENGTH_LONG).show();
        }   
    }
    @Override
    protected void onCancelled() {
        // TODO Auto-generated method stub
        if(!isCancelled())
            cancel(true);
    }

}

class imageCheckBoxAdapter extends ArrayAdapter<String> implements OnClickListener
{
    private final Context context;
    private final ArrayList<String> values;
    private final Map< String, SmbFile> obj;
    private ArrayList<Boolean> checks=new ArrayList<Boolean>();
    public imageCheckBoxAdapter(Context context,ArrayList<String> values,Map< String, SmbFile>obj) 
    {
        super(context, R.layout.row_checkbox, values);
        this.context = context;
        this.values = values;
        this.obj=obj;
        for (int i = 0; i < values.size(); i++) 
        {
            checks.add(i, false);
        }
    }
    @Override
    public View getView(int position, View convertView, ViewGroup parent) 
    {
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View rowView = inflater.inflate(R.layout.row_checkbox, parent, false);
        TextView textView = (TextView) rowView.findViewById(R.id.text1_check);
        CheckBox chk = (CheckBox) rowView.findViewById(R.id.checkBox1);
        textView.setText(values.get(position));
        ImageView imageView = (ImageView) rowView.findViewById(R.id.icon_image_check);
        try
        {
            if((obj.get(values.get(position)).isFile()))
            {
                imageView.setImageResource(R.drawable.view_file_icon);
            }
            else
            {
                imageView.setImageResource(R.drawable.view_folder_icon);
            }
        }
        catch (Exception e) 
        {
            Toast.makeText(context,"Network error "+e,Toast.LENGTH_LONG).show();
        }
        chk.setTag(Integer.valueOf(position));
        // Set a listener for the checkbox
        chk.setOnClickListener(this);
        //Sets the state of CB, since we have the list of checked CB
        chk.setChecked(checks.get(position));
        return rowView;
    }
    @Override
    public void onClick(View view) 
    {
        Integer index = (Integer)view.getTag();
        boolean state = checks.get(index.intValue());
        checks.set(index.intValue(), !state);
    }
    boolean getter(int i)
    {
       return checks.get(i);
    }
}

class imageAdapter extends ArrayAdapter<String>
{
    private final Context context;
    private final ArrayList<String> values;
    private final Map< String, SmbFile> obj;
    public imageAdapter(Context context,ArrayList<String> values,Map< String, SmbFile> obj) 
    {
        super(context, R.layout.row, values);
        this.context = context;
        this.values = values;
        this.obj=obj;
    }
    @Override
    public View getView(int position, View convertView, ViewGroup parent) 
    {
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View rowView = inflater.inflate(R.layout.row, parent, false);
        TextView textView = (TextView) rowView.findViewById(R.id.text1);
        textView.setText(values.get(position));
        ImageView imageView = (ImageView) rowView.findViewById(R.id.icon_image);
        try
        {
            if((obj.get(values.get(position)).isFile()))
            {
                imageView.setImageResource(R.drawable.view_file_icon);
            }
            else
            {
                imageView.setImageResource(R.drawable.view_folder_icon);
            }
        }
        catch (Exception e) 
        {
            Toast.makeText(context,"Network error "+e,Toast.LENGTH_LONG).show();
        }
        return rowView;
    }
}

public class t extends ListActivity
{
    String ip="127.0.0.1",name="Deepak",password="       ";
    String url;
    NtlmPasswordAuthentication auth;
    Map< String, SmbFile> map=new HashMap< String, SmbFile>();
    SmbFile previous=null,current=null;
    imageCheckBoxAdapter object=null;
    String extStorage=Environment.getExternalStorageDirectory()+"/t/";
    ArrayList<Helper> helpobject=new ArrayList<Helper>();
    int uptask=0;
    int downtask=0;
    int level=0;
    int MENU_STATE=0;
    final int MENU_GENERAL=0;
    final int MENU_DOWNLOAD=1;
    final int MENU_UPLOAD=2;
    final int MENU_DELETE=3;
    final int DOWNLOAD1=41;
    final int DOWNLOAD2=42;
    final int UPLOAD=43;
    final int DELETE1=45;
    final int DELETE2=46;
    final int QUIT=47;
    final int CANCEL=48;
    final int FINISH=49;

    Map< String, SmbFile> listMap(SmbFile obj)
    {
        Map< String, SmbFile> list_map=new HashMap< String, SmbFile>();
        int i;
        try
        {
            SmbFile a[]=obj.listFiles();
            for(i=0;i<a.length;i++)
            {
                if(!a[i].isHidden())
                {
                    list_map.put( a[i].getName(), a[i] ); 
                }
            }
            return list_map;
        }
        catch(SmbException e)
        {
            Toast.makeText(this,"cannot list files "+e,Toast.LENGTH_LONG).show();
            return null;
        }

    }   
    Map< String, SmbFile> display(SmbFile obj)
    {
        Map< String, SmbFile> display_map=new HashMap< String, SmbFile>();
        ArrayList<String> smbName=new ArrayList<String>();
        display_map=listMap(obj);
        Set<String> keys = display_map.keySet();
        for(String key:keys)
        {
            smbName.add(key);
        }
        setListAdapter(new imageAdapter(this, smbName,display_map));
        return display_map;
    }
    Map< String, SmbFile> display_check(SmbFile obj)
    {
        Map< String, SmbFile> display_map=new HashMap< String, SmbFile>();
        ArrayList<String> smbName=new ArrayList<String>();
        display_map=listMap(obj);
        Set<String> keys = display_map.keySet();
        for(String key:keys)
        {
            smbName.add(key);
        }
        object= new imageCheckBoxAdapter(this, smbName,display_map);
        setListAdapter(object);
        return display_map;
    }   
    @Override
    public boolean onPrepareOptionsMenu(Menu menu) 
    {
        if(MENU_STATE==MENU_GENERAL)
        {
            menu.clear();
            menu.add(0, DOWNLOAD1, 0, "Download");
            menu.add(0, UPLOAD, 0, "Upload");
            menu.add(0, DELETE1, 0, "Delete");
            menu.add(0, QUIT, 0, "Quit");
            menu.add(0, FINISH, 0, "Finish");
        }
        else
        {
            if(MENU_STATE==MENU_DOWNLOAD)
            {
                menu.clear();
                menu.add(0, DOWNLOAD2, 0, "Download");
                menu.add(0, CANCEL, 0, "Cancel");
            }
            else
            {
                if(MENU_STATE==MENU_DELETE)
                {
                    menu.clear();
                    menu.add(0, DELETE2, 0, "Delete");
                    menu.add(0, CANCEL, 0, "Cancel");
                }
            }
        }
        return super.onPrepareOptionsMenu(menu);
    }
    @Override
    public boolean onOptionsItemSelected(MenuItem item) 
    {
        switch(item.getItemId())
        {
            case DOWNLOAD1:
                            MENU_STATE=MENU_DOWNLOAD;
                            map=display_check(current);
                            return true;
            case UPLOAD:
                            if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))
                            {
                                if(current.getShare()==null)
                                {
                                    Toast.makeText(this,"UPLOAD FAILED",Toast.LENGTH_LONG).show();
                                }
                                else
                                {
                                    File f=new File(extStorage);
                                    Helper help=new Helper();
                                    helpobject.add(help);
                                    help.setufolder(f);
                                    help.setufoldersmb(current);
                                    help.setauthentication(auth);
                                    help.setupstate(1);
                                    help.settasknumber(uptask);
                                    uptask++;
                                    help.settaskname("Upload");
                                    help.setcontext(this.getApplicationContext());
                                    help.execute(1);
                                }
                            }
                            else
                            {
                                Toast.makeText(this,"UPLOAD FAILED--NO SD CARD FOUND",Toast.LENGTH_LONG).show();
                            }
                            return true;
        case DELETE1:
                            MENU_STATE=MENU_DELETE;
                            map=display_check(current);
                            return true;
        case QUIT:
                            for(Helper k:helpobject)
                            {
                                if(k.getStatus()==AsyncTask.Status.RUNNING||k.getStatus()==AsyncTask.Status.PENDING)
                                {
                                    k.cancel(true);
                                }
                            }
                            int countm=0;
                            for(Helper k:helpobject)
                            {
                                if(k.isCancelled())
                                {
                                    countm++;
                                }
                            }
                            if(countm==helpobject.size())
                            Toast.makeText(this,"All download and upload tasks cancelled",Toast.LENGTH_LONG).show();
                            return true;
        case DOWNLOAD2:  
                            if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))
                            {
                                int tempcount=0;
                                for(int i=0;i<object.getCount();i++)
                                {
                                    if(object.getter(i)==true)
                                    {
                                        tempcount++;
                                    }
                                }
                                if(tempcount==0)
                                {
                                    Toast.makeText(this,"Please choose atleast one item for download!!",Toast.LENGTH_LONG).show();
                                }
                                else
                                {
                                    Helper help=new Helper();
                                    helpobject.add(help);
                                    help.settasknumber(downtask);
                                    downtask++;
                                    help.settaskname("Download");
                                    help.setcontext(this.getApplicationContext());
                                    help.setextstorage(extStorage);
                                    help.setdownstate(1);
                                    for(int i=0;i<object.getCount();i++)
                                    {
                                        if(object.getter(i)==true)
                                        {
                                            help.setarraysmb(map.get(object.getItem(i)));
                                        }
                                    }
                                    help.execute(0);
                                }
                            }
                            else
                            {
                                Toast.makeText(this,"DOWNLOAD FAILED--NO SD CARD FOUND",Toast.LENGTH_LONG).show();
                            }                   
                            return true;
        case DELETE2:
                            for(int i=0;i<object.getCount();i++)
                            {
                                if(object.getter(i)==true)
                                {
                                    try 
                                    {
                                        map.get(object.getItem(i)).delete();
                                    } 
                                    catch (Exception e) 
                                    {
                                        Toast.makeText(this,"cannot be deleted "+e,Toast.LENGTH_LONG).show();
                                    }
                                }
                            }
                            return true;
        case CANCEL:
                            MENU_STATE=MENU_GENERAL;
                            map=display(current);
                            return true;
        case FINISH:
                            finish();
        default:
                            return super.onOptionsItemSelected(item);
        }
    }
    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        File abc=new File(Environment.getExternalStorageDirectory()+"/t/");
        if(!abc.exists())
        {
            abc.mkdir();
        }
        url= "smb://" + ip + "/";
        auth = new NtlmPasswordAuthentication(null, name, password);
        try 
        {
            SmbFile dir = new SmbFile(url, auth);
            current=dir;
            map=display(dir);
        } 
        catch (Exception e) 
        {
            Toast.makeText(this,"Network error "+e,Toast.LENGTH_LONG).show();
        }

    }
    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) 
    {
        super.onListItemClick(l, v, position, id);
        Object o=this.getListAdapter().getItem(position);
        String keyword=o.toString();
        Set<String> keys = map.keySet();
        for(String key:keys)
        {
            if(keyword==key)
            {
                SmbFile temp=map.get(key);
                try
                {
                    if(temp.isDirectory())
                    {
                        try
                        {
                            previous= new SmbFile(map.get(key).getParent(), auth);
                            level=level+1;
                        }
                        catch(Exception e)
                        {
                            Toast.makeText(this,"Network error "+e,Toast.LENGTH_LONG).show();
                        }
                        current=map.get(key);
                        map=display(map.get(key));
                    }
                }
                catch(Exception e)
                {
                    Toast.makeText(this,"you can't open this directory "+e,Toast.LENGTH_LONG).show();
                }
            }
        }   
    }
    @Override
    public void onBackPressed() 
    {
        MENU_STATE=MENU_GENERAL;
        if(level>=1)
        {
            level=level-1;
            current=previous;
            map=display(previous);
            try
            {
                previous=new SmbFile(previous.getParent(), auth);
            }
            catch (Exception e) 
            {
                Toast.makeText(this,"Network error "+e,Toast.LENGTH_LONG).show();
            }   
        }
        else
        {
            level=0;
            super.onBackPressed();
        }   
    }
}

Answer 1

我注意到您正在使用 Java CIFS 库。我的猜测是您没有使用它的 Android 版本，而是您刚刚在项目中删除了标准 jar。这行不通。您需要为 Android 重新编译它。

另外，你不应该将你的包命名为 com.android.test(不要在其中包含 android 这个词)。