title: apache http client org.apache.http.NoHttpResponseException: The target server failed to respond
body: <p>I am using apache http client to test my WS. I have write a get WS in jersey. URL for this WS is </p>
  
  <pre><code>http://localhost:8080/mobilestore/rest/sysgestockmobilews/getinventory?xml=dataString
  </code></pre>
  
  <p>to call this WS using url i have write a method which is as follow</p>
  
  <pre><code>public static void getInventory(String input)
          throws ClientProtocolException, IOException {
  
      System.out.println(input);
      String url = URL + "getinventory";
      HttpClient client = new DefaultHttpClient();
  
      List&lt;NameValuePair&gt; nameValuePairs = new ArrayList&lt;NameValuePair&gt;(1);
      nameValuePairs.add(new BasicNameValuePair("xml", input));
      String paramString = URLEncodedUtils.format(nameValuePairs, "utf-8");
      url += "?" + paramString;
      System.out.println(url);
      HttpGet request = new HttpGet(url);
      HttpResponse response = client.execute(request);
      BufferedReader rd = new BufferedReader(new InputStreamReader(response
              .getEntity().getContent()));
  
      String line = "";
      while ((line = rd.readLine()) != null) {
          System.out.println(line);
      }
  
  }
  </code></pre>
  
  <p>Now when i run the program and pass the url to this function i get exception at the line </p>
  
  <pre><code>HttpResponse response = client.execute(request);
  </code></pre>
  
  <p>Exception is as follow </p>
  
  <pre><code>Aug 14, 2013 9:31:50 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute
  INFO: I/O exception (org.apache.http.NoHttpResponseException) caught when processing         request: The target server failed to respond
  Aug 14, 2013 9:31:50 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute
  INFO: Retrying request
  Aug 14, 2013 9:31:50 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute
  INFO: I/O exception (org.apache.http.NoHttpResponseException) caught when processing   request: The target server failed to respond
  Aug 14, 2013 9:31:50 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute
  INFO: Retrying request
  Aug 14, 2013 9:31:50 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute
  INFO: I/O exception (org.apache.http.NoHttpResponseException) caught when processing      request: The target server failed to respond
  Aug 14, 2013 9:31:50 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute
  INFO: Retrying request
  Exception in thread "main" org.apache.http.NoHttpResponseException: The target server failed to respond
  at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:95)
  at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:62)
  at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:254)
  at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:289)
  at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:252)
  at org.apache.http.impl.conn.ManagedClientConnectionImpl.receiveResponseHeader(ManagedClientConnectionImpl.java:191)
  at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:300)
  at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:127)
  at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:715)
  at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:520)
  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
  at    org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:784)
  at com.tainosystems.http.client.TestWs.getInventory(TestWs.java:66)
  at com.tainosystems.http.client.TestWs.main(TestWs.java:47)
  </code></pre>
  
  <p>Now if i use the WS url and hit it using any browser i get the expected result but i want to know what is wrong with my apache http client code..</p>