I have a relatively simple composite widget that's using UIBinder in an MVC 
model.

DrawingSubmissionForm.ui.xml
****************************
<!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent";>
<ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
xmlns:g="urn:import:com.google.gwt.user.client.ui">
<g:HTMLPanel ui:field="pnlLineItems" addStyleNames="pnlLineItems">
<h1>Add Drawings</h1>
<g:FlexTable ui:field="tblItems" addStyleNames="tblItems"></g:FlexTable>
<g:Button ui:field="cmdCancel" addStyleNames="cmdCancel">Cancel</g:Button>
<g:Button ui:field="cmdSubmit" addStyleNames="cmdSubmit">Submit 
Drawings</g:Button>
</g:HTMLPanel>
</ui:UiBinder> 


DrawingSubmissionForm.java
****************************
public class DrawingSubmissionForm extends Composite {

public HTMLPanel pnlLineItems;
public FlexTable tblItems;
public Button cmdCancel;
public Button cmdSubmit;

interface Binder extends UiBinder<Widget, DrawingSubmissionForm> {}

private static final Binder binder = GWT.create(Binder.class);
interface DrawingSubmissionFormUiBinder extends
UiBinder<Widget, DrawingSubmissionForm> {
}

public DrawingSubmissionForm() {
initWidget(binder.createAndBindUi(this));
}

public HTMLPanel getPnlLineItems(){
return pnlLineItems;
}
public FlexTable getTblItems(){
return tblItems;
}
public Button getCmdCancel(){
return cmdCancel;
}
public Button getCmdSubmit(){
return cmdSubmit;
}
}

When I try to instantiate a new instance in my Presenter class, I get a new 
instance but all of the fields are null? 

public class DrawingSubmissionFormPresenter extends 
BasePresenter<DrawingSubmissionForm> 
implements ClosableViewInterface {

DrawingSubmissionForm view;
CloseListener closeListener;
OrderProxy quoteDTO = null;

public DrawingSubmissionFormPresenter(OrderProxy quoteDTO) {
super();
this.quoteDTO = quoteDTO;
initializeView();
initializeEventHandlers();
loadData();
}

@Override
public void addCloseListener(CloseListener arg0) {
this.closeListener = arg0;
}

@Override
protected void initializeEventHandlers() {
// TODO Auto-generated method stub
}

@Override
protected void initializeView() {
view = new DrawingSubmissionForm(); 
}

private void loadData(){
if(quoteDTO != null){
FlexTable table = view.getTblItems(); *//view exists as expected but 
getTblItems() returns null???*
table.removeAllRows(); 
int row = 0; //we start at 1 because row 0 is the header
for (OrderLineProxy lineDTO : quoteDTO.getOrderLines()) {
final DrawingFormSubmissionLine dl = new DrawingFormSubmissionLine();
dl.getDescription().setText(lineDTO.getOrderLine().getItemDescription1());
dl.line = lineDTO;
table.setWidget(row++, 0, dl);
} 
}else{
Window.alert("Quote Line Items could not be loaded. Please close and try 
again.");
}
}
}


So, as my comment states, "view" exists as I expect but getTblItems() 
returns null? I do this exact same thing in multiple instance of this 
project but I can't seem to figure out what I did wrong here. Any help 
would be appreciated. :)

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