title: I'm using OData4j for Android,I can't get the entities
body: <p>This is my code:</p>
  
  <pre><code>package com.example.toggleDemo;
  
  import android.app.ListActivity;
  import android.os.Bundle;
  import android.widget.ArrayAdapter;
  import org.odata4j.consumer.ODataConsumer;
  import org.odata4j.core.OEntity;
  import org.odata4j.jersey.consumer.ODataJerseyConsumer;
  import java.util.List;
  import java.util.ArrayList;
  
  public class MainActivity  extends ListActivity {
      @Override
      public void  onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setListAdapter(new ArrayAdapter&lt;String&gt;(this,android.R.layout.simple_list_item_1, GetExpenseReports()));
          getListView().setTextFilterEnabled(true);
      }
  
      ArrayList&lt;String&gt; GetExpenseReports()
      {
          ArrayList&lt;String&gt; listUI = new ArrayList&lt;String&gt;();
          ODataConsumer c = ODataJerseyConsumer.create("http://services.odata.org/Northwind/Northwind.svc/");
          List&lt;OEntity&gt; listCategories= (List&lt;OEntity&gt;) c.getEntities("Categories");
          for(OEntity category : listCategories) {
              listUI.add(String.format("%s-%s", category.getProperty("CategoryID").getValue().toString(), category.getProperty("CategoryName").getValue().toString()));
          }
          return  listUI;
      }
  }
  </code></pre>
  
  <p>When run in the emulator,it's error :
  08-28 17:30:05.793: ERROR/AndroidRuntime(781): FATAL EXCEPTION: main
          java.lang.NoClassDefFoundError: javax.ws.rs.ext.RuntimeDelegate
          at org.odata4j.jersey.consumer.ODataJerseyConsumer.(ODataJerseyConsumer.java:22)
          at org.odata4j.jersey.consumer.ODataJerseyConsumer.(ODataJerseyConsumer.java:14)
          at org.odata4j.jersey.consumer.ODataJerseyConsumer$Builder.build(ODataJerseyConsumer.java:93)
          at org.odata4j.jersey.consumer.ODataJerseyConsumer.create(ODataJerseyConsumer.java:115)
          at com.example.toggleDemo.MainActivity.GetExpenseReports(MainActivity.java:38)
          at com.example.toggleDemo.MainActivity.onCreate(MainActivity.java:22)
          at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
          at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
          at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
          at android.app.ActivityThread.access$2300(ActivityThread.java:125)
          at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
          at android.os.Handler.dispatchMessage(Handler.java:99)
          at android.os.Looper.loop(Looper.java:123)
          at android.app.ActivityThread.main(ActivityThread.java:4627)
          at java.lang.reflect.Method.invokeNative(Native Method)
          at java.lang.reflect.Method.invoke(Method.java:521)
          at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
          at dalvik.system.NativeStart.main(Native Method)</p>
  
  <p>Thanks in advance!</p>