Android - IOExceptionログのエラー

Question

私は奇妙な状況に苦しんでいます。問題は、私のアプリケーションがカスタムWebサービスからデータを取得するためにAsynctaskを使用していることです。ここでは、同じタスクで、ログにIOExceptionエラーが発生しています。しかし、タスクは正常に動作し、サーバーから収集するために必要なすべてのデータを返します。それはasynctaskが正常に動作しているようだが、ログに "IOException"を与えているようだ。ここにログがあります

03-22 18:39:50.880: D/dalvikvm(586): GC_FOR_MALLOC freed 2666K, 54% free 4661K/10119K, external 2108K/2633K, paused 73ms 
03-22 18:39:54.370: D/PhoneWindow(586): couldn't save which view has focus because the focused view android.widget.EditText@405438d0 has no id. 
03-22 18:39:58.352: E/Exception at FETCH EMPLOYEE TASK(586): java.io.IOException: Not Found 
03-22 18:40:00.210: D/dalvikvm(586): GC_CONCURRENT freed 1189K, 53% free 4778K/10119K, external 2113K/2215K, paused 9ms+10ms 
03-22 18:40:03.670: D/dalvikvm(586): GC_CONCURRENT freed 1360K, 53% free 4767K/10119K, external 2108K/2215K, paused 9ms+5ms 
03-22 18:40:07.230: E/Exception at FETCH EMPLOYEE TASK(586): java.io.IOException: Not Found 
03-22 18:40:09.070: D/dalvikvm(586): GC_CONCURRENT freed 1129K, 51% free 5041K/10119K, external 2108K/2215K, paused 8ms+6ms 
03-22 18:40:12.810: E/Exception at FETCH EMPLOYEE TASK(586): java.io.IOException: Not Found 
03-22 18:40:14.610: D/dalvikvm(586): GC_CONCURRENT freed 1312K, 49% free 5231K/10119K, external 2108K/2215K, paused 9ms+6ms 
03-22 18:40:21.220: D/dalvikvm(586): GC_CONCURRENT freed 1354K, 47% free 5437K/10119K, external 2108K/2215K, paused 9ms+6ms 
03-22 18:40:22.210: E/Exception at FETCH EMPLOYEE TASK(586): java.io.IOException: Not Found 
03-22 18:40:26.880: D/dalvikvm(586): GC_CONCURRENT freed 2246K, 53% free 4803K/10119K, external 2108K/2215K, paused 19ms+7ms 
03-22 18:40:27.891: E/Exception at FETCH EMPLOYEE TASK(586): java.io.IOException: Not Found 
03-22 18:40:32.540: D/dalvikvm(586): GC_CONCURRENT freed 1319K, 52% free 4896K/10119K, external 2108K/2215K, paused 8ms+6ms 
03-22 18:40:36.183: E/Exception at FETCH EMPLOYEE TASK(586): java.io.IOException: Not Found 
03-22 18:40:38.081: D/dalvikvm(586): GC_CONCURRENT freed 1293K, 51% free 5000K/10119K, external 2108K/2215K, paused 8ms+8ms 
03-22 18:40:40.330: I/dalvikvm(586): Jit: resizing JitTable from 2048 to 4096 
03-22 18:40:40.780: W/IInputConnectionWrapper(586): finishComposingText on inactive InputConnection 
03-22 18:40:43.390: E/Exception at FETCH EMPLOYEE TASK(586): java.io.IOException: Not Found 
03-22 18:40:44.790: D/dalvikvm(586): GC_CONCURRENT freed 1715K, 54% free 4700K/10119K, external 2108K/2215K, paused 9ms+7ms 

ここで私のAsynctaskです。

public class FetchEmployeeTask extends AsyncTask<String, Void, VO_EmployeeHolder> { 

VO_EmployeeHolder vEholder = new VO_EmployeeHolder(); 
Core core     = new Core(); 

String _empId,_username,_password; 
String _data,_url; 
private static final String KEY_ID   = "id"; 
private static final String KEY_FNAME  = "first-name"; 
private static final String KEY_LNAME  = "last-name"; 
private static final String KEY_DESIG  = "title"; 
private static final String KEY_EMAIL  = "email-address"; 
private static final String KEY_AVATAR  = "avatar-url"; 
private static final String KEY_CELLNO  = "phone-number-mobile"; 

@Override 
protected VO_EmployeeHolder doInBackground(String... params) { 

    this._empId   = params[0]; 
    this._username  = params[1]; 
    this._password  = params[2]; 
    this._url   = "https://somedomainhere.to.place/man/"+this._empId+".xml"; 

    HttpClient httpclient = new DefaultHttpClient(); 
    HttpResponse response; 
    HttpHost _thost = new HttpHost("somedomainhere.to.place",443,"https"); 
    try { 
     ((AbstractHttpClient) httpclient).getCredentialsProvider().setCredentials(
       new org.apache.http.auth.AuthScope(_thost.getHostName(),_thost.getPort()), 
       new org.apache.http.auth.UsernamePasswordCredentials(this._username, this._password)); 

     response = httpclient.execute(new HttpGet(this._url)); 
     StatusLine statusLine = response.getStatusLine(); 
     if(statusLine.getStatusCode() == HttpStatus.SC_OK) { 
      InputStream _Istream = response.getEntity().getContent(); 
      Document _Document = DomTaskParse(_Istream); 
      NodeList _nodeRecord = _Document.getElementsByTagName("person"); 
      loadEmployee(_nodeRecord); 
     } else { 
      response.getEntity().getContent().close(); 
      throw new IOException(statusLine.getReasonPhrase()); 
     } 
    } catch(ClientProtocolException cpe) { 
     Log.e("ClientProtocolException @ FPT",cpe.toString()); 
    } catch(Exception ex) { 
     Log.e("Exception at FETCH EMPLOYEE TASK",ex.toString()); 
    } 


    return this.vEholder; 
} 

private void loadEmployee(NodeList nList) { 
    Element e = (Element) nList.item(0); 
    this.vEholder._id    = core.getValue(e, KEY_ID); 
    this.vEholder._fname   = core.getValue(e, KEY_FNAME); 
    this.vEholder._lname   = core.getValue(e, KEY_LNAME); 
    this.vEholder._designation  = core.getValue(e, KEY_DESIG); 
    this.vEholder._email   = core.getValue(e, KEY_EMAIL); 
    this.vEholder._avatar   = core.getValue(e, KEY_AVATAR); 
    this.vEholder._cellno   = core.getValue(e, KEY_CELLNO); 
} 

private Document DomTaskParse(InputStream _Istream) { 
    try { 
     return new DomParserTask().execute(_Istream).get(); 
    } catch (InterruptedException e) { 
     // TODO Auto-generated catch block 
     e.printStackTrace(); 
    } catch (ExecutionException e) { 
     // TODO Auto-generated catch block 
     e.printStackTrace(); 
    } 
    return null; 
} 

}

Answer 1

Androidのガベージコレクタは、バックグラウンドで実行されています。 DVMは、GCを呼び出し、この特定のアプリケーション用に割り当てられたRAMを増やして、不要なデータを消去しています。 RAMは、アプリケーションに与えることができる最大RAMに達するまで増加し、その後に拡張したい場合、DVMはOut of Memory Exceptionをスローします。