FireBase UI Android FirebaseRecyclerAdapter error
<pre><code>**I am trying to populate the firebase data via FirebaseRecyclerAdapter but i get  errors in log,
01-01 22:42:32.610  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Description: add
01-01 22:42:32.610  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Status: clean
01-01 22:42:32.610  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Description: ghffjggu
01-01 22:42:32.610  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Status: dirty
01-01 22:42:32.610  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Description: fhfhjhg
01-01 22:42:32.610  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Status: dirty
01-01 22:42:32.610  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Description: fg
01-01 22:42:32.610  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Status: dirty
01-01 22:42:32.610  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Description: ggg
01-01 22:42:32.610  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Status: dirty
01-01 22:42:32.610  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Description: add
01-01 22:42:32.611  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Status: dirty
01-01 22:42:32.611  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Description: .ark this
01-01 22:42:32.611  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Status: dirty
01-01 22:42:32.611  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Description: mark
01-01 22:42:32.611  25547-25547/exam.vsrk.cleanvit I/System.out﹕ Status: dirty
01-01 22:42:32.648  25547-25547/exam.vsrk.cleanvit D/AndroidRuntime﹕ Shutting down VM
01-01 22:42:32.650  25547-25547/exam.vsrk.cleanvit E/AndroidRuntime﹕ FATAL EXCEPTION: main
    Process: exam.vsrk.cleanvit, PID: 25547
    com.firebase.client.FirebaseException: Failed to bounce to type
            at com.firebase.client.DataSnapshot.getValue(DataSnapshot.java:185)
            at com.firebase.ui.FirebaseRecyclerAdapter.getItem(FirebaseRecyclerAdapter.java:150)
            at com.firebase.ui.FirebaseRecyclerAdapter.onBindViewHolder(FirebaseRecyclerAdapter.java:179)
            at android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:5217)
            at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:5250)
            at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4487)
            at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4363)
            at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1961)
            at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1370)
            at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1333)
            at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:562)
            at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2900)
            at android.support.v7.widget.RecyclerView.consumePendingUpdateOperations(RecyclerView.java:1445)
            at android.support.v7.widget.RecyclerView.access$400(RecyclerView.java:144)
            at android.support.v7.widget.RecyclerView$1.run(RecyclerView.java:282)
            at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
            at android.view.Choreographer.doCallbacks(Choreographer.java:580)
            at android.view.Choreographer.doFrame(Choreographer.java:549)
            at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
            at android.os.Handler.handleCallback(Handler.java:739)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5343)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700)
     Caused by: com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "-880497298" (class exam.vsrk.cleanvit.MapComponents.Maps.FireBaseUI.RemovedSpotItems), not marked as ignorable (4 known properties: , "status", "owner", "description", "cleanedBy"])
            at [Source: java.io.StringReader@1026bfb7; line: 1, column: 16] (through reference chain: exam.vsrk.cleanvit.MapComponents.Maps.FireBaseUI.RemovedSpotItems["-880497298"])
            at com.fasterxml.jackson.databind.DeserializationContext.reportUnknownProperty(DeserializationContext.java:555)
            at com.fasterxml.jackson.databind.deser.std.StdDeserializer.handleUnknownProperty(StdDeserializer.java:708)
            at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.handleUnknownProperty(BeanDeserializerBase.java:1160)
            at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:315)
            at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:121)
            at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:2888)
            at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2034)
            at com.firebase.client.DataSnapshot.getValue(DataSnapshot.java:183)
            at com.firebase.ui.FirebaseRecyclerAdapter.getItem(FirebaseRecyclerAdapter.java:150)
            at com.firebase.ui.FirebaseRecyclerAdapter.onBindViewHolder(FirebaseRecyclerAdapter.java:179)
            at android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:5217)
            at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:5250)
            at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4487)
            at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4363)
            at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1961)
            at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1370)
            at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1333)
            at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:562)
            at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2900)
            at android.support.v7.widget.RecyclerView.consumePendingUpdateOperations(RecyclerView.java:1445)
            at android.support.v7.widget.RecyclerView.access$400(RecyclerView.java:144)
            at android.support.v7.widget.RecyclerView$1.run(RecyclerView.java:282)
            at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
            at android.view.Choreographer.doCallbacks(Choreographer.java:580)
            at android.view.Choreographer.doFrame(Choreographer.java:549)
            at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
            at android.os.Handler.handleCallback(Handler.java:739)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5343)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700)
</code></pre>

<p>Here's my complete code.</p>

<pre><code>public class RemovedSpotsActivity extends AppCompatActivity {

  private FirebaseRecyclerAdapter mAdapter;
  List&lt;RemovedSpotItems&gt; removedSpots;


  @Override
  protected void onCreate(Bundle s) {

    super.onCreate(s);
    setContentView(R.layout.removed_spots_list);

    removedSpots=new ArrayList&lt;&gt;();

    Firebase.setAndroidContext(this);
    final Firebase ref = new Firebase(getResources().getString(R.string.firebase_url));
    RecyclerView recycler = (RecyclerView) findViewById(R.id.recycler_view);
    recycler.setHasFixedSize(true);
    recycler.setLayoutManager(new LinearLayoutManager(this));
    String key=ref.child("markers").getKey();
    Log.v("KEY_ENTERED",key);
    ref.child("markers").addChildEventListener(new ChildEventListener() {
        @Override
        public void onChildAdded(DataSnapshot dataSnapshot, String s) {
          Map&lt;String, Object&gt; newPost = (Map&lt;String, Object&gt;) dataSnapshot.getValue();
          System.out.println("Description: " + newPost.get("description"));
            System.out.println("Status: " + newPost.get("status"));
            RemovedSpotItems items = new RemovedSpotItems();

            items.setDescription((String) newPost.get("description"));
            items.setStatus((String) newPost.get("status"));
            removedSpots.add(items);
        }
        public void onChildChanged(DataSnapshot dataSnapshot, String s) { }
        public void onChildRemoved(DataSnapshot dataSnapshot) { }
        public void onChildMoved(DataSnapshot dataSnapshot, String s) { }
        public void onCancelled(FirebaseError firebaseError) { }
    });

    mAdapter = new FirebaseRecyclerAdapter&lt;RemovedSpotItems, ReomvedSpotViewHolder&gt;(RemovedSpotItems.class, R.layout.removed_spots_row, ReomvedSpotViewHolder.class,ref) {

        @Override
        protected void populateViewHolder(ReomvedSpotViewHolder viewHolder, RemovedSpotItems model, int position) {
            super.populateViewHolder(viewHolder, model, position);
            final int i = 0;
            Log.v("TAG","populating");
            RemovedSpotItems model1=removedSpots.get(i);

            viewHolder.description.setText(model1.getDescription());
            viewHolder.email.setText(model1.getStatus());
        }
    };

    recycler.setAdapter(mAdapter);
}
</code></pre>

<p>I have tried my level best but couldn't identify the error i think there is no problem in retrieving the data as it is correctly retrieved as we can see in the log there is some problem with FirebaseRecyclerAdapter.</p>

<p>RemovedSpotItems.java</p>

<pre><code>public class RemovedSpotItems {
    public String description;
    public String cleanedBy;
    public String owner;
    public String status;

    public String getDescription()
    {
        return  description;
    }
    public void setDescription(String description)
    {
        this.description=description;        
    }
    public String getCleanedBy()
    {
        return cleanedBy;
    }
    public void setCleanedBy(String cleanedBy)
    {
        this.cleanedBy=cleanedBy;
    }
    public String getStatus()
    {
        return status;
    }
    public void setStatus(String status)
    {
        this.status=status;
    }
    public String getOwner() { return owner;}
    public  void setOwner(String owner)
    {
        this.owner=owner;
    }

}
</code></pre>

<p>JSON STRUCTURE</p>

<pre><code>{
  "markers" : {
    "-341910319" : {
      "description" : "fhfhfhh",
      "latitude" : 26.207505661864655,
      "longitude" : 78.17407708615065,
      "owner" : "6b63df86-9d11-47f5-bac1-7150f9043016",
      "status" : "dirty"
    },
    "-101000882" : {
      "description" : "fifs",
      "latitude" : 26.207906640793592,
      "longitude" : 78.17450053989887,
      "owner" : "6b63df86-9d11-47f5-bac1-7150f9043016",
      "status" : "dirty"
    }
  },
  "users" : {
    "6b63df86-9d11-47f5-bac1-7150f9043016" : {
      "displayName" : "ramkishorevit@gmail.com",
      "provider" : "password"
    }
  }
}
</code></pre>