Program: 24757
Project: 24757
Buggy source:
private void addNavigationLinks(State currentState){
  String role="String_Node_Str";
  if (!currentState.isAuthenticated()) {
    return;
  }
  if (!currentState.getUserProjectRole().equals(ProjectRole.None)) {
    role="String_Node_Str" + currentState.getUserProjectRole().getLabel() + "String_Node_Str";
  }
  Label userName=new Label(currentState.getUserName() + role);
  this.linksPanel.add(userName);
  this.linksPanel.add(new Label(messages.delimiter()));
  if (currentState.isSiteAdministrator()) {
    Hyperlink adminLink=new Hyperlink(messages.adminLinkText(),ManageSitePilot.generateNavigationId(ManageSitePilot.PageId.home));
    this.linksPanel.add(adminLink);
    this.linksPanel.add(new Label(messages.delimiter()));
  }
  Hyperlink preference=new Hyperlink(messages.linkTitle2(),ChooseCasePilot.generateNavigationId(ChooseCasePilot.PageId.preferences));
  this.linksPanel.add(preference);
  this.linksPanel.add(new Label(messages.delimiter()));
  HTML helpLink=new HTML("String_Node_Str" + properties.getHelpLink() + "String_Node_Str");
  this.linksPanel.add(helpLink);
  this.linksPanel.add(new Label(messages.delimiter()));
  Hyperlink signOut=new Hyperlink("String_Node_Str",ChooseCasePilot.generateNavigationId(ChooseCasePilot.PageId.logout));
  this.linksPanel.add(signOut);
  signOut.addClickHandler(new ClickHandler(){
    @Override public void onClick(    ClickEvent event){
      logInService.logOut(new AsyncCallback<Void>(){
        @Override public void onFailure(        Throwable caught){
        }
        @Override public void onSuccess(        Void result){
        }
      }
);
    }
  }
);
  this.linksPanel.setSpacing(3);
  this.linksPanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_RIGHT);
  this.linksPanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_TOP);
}

Fixed version (ground truth):
private void addNavigationLinks(State currentState){
  String role="String_Node_Str";
  if (!currentState.isAuthenticated()) {
    return;
  }
  if (!currentState.getUserProjectRole().equals(ProjectRole.None)) {
    role="String_Node_Str" + currentState.getUserProjectRole().getLabel() + "String_Node_Str";
  }
  Label userName=new Label(currentState.getUserName() + role);
  this.linksPanel.add(userName);
  this.linksPanel.add(new Label(messages.delimiter()));
  if (currentState.isSiteAdministrator() || currentState.getUserProjectRole() == ProjectRole.Acquisition_Organization_Engineer) {
    currentState.setMode(GwtModesType.ReadWrite);
  }
{
    Hyperlink adminLink=new Hyperlink(messages.adminLinkText(),ManageSitePilot.generateNavigationId(ManageSitePilot.PageId.home));
    this.linksPanel.add(adminLink);
    this.linksPanel.add(new Label(messages.delimiter()));
  }
  Hyperlink preference=new Hyperlink(messages.linkTitle2(),ChooseCasePilot.generateNavigationId(ChooseCasePilot.PageId.preferences));
  this.linksPanel.add(preference);
  this.linksPanel.add(new Label(messages.delimiter()));
  HTML helpLink=new HTML("String_Node_Str" + properties.getHelpLink() + "String_Node_Str");
  this.linksPanel.add(helpLink);
  this.linksPanel.add(new Label(messages.delimiter()));
  Hyperlink signOut=new Hyperlink("String_Node_Str",ChooseCasePilot.generateNavigationId(ChooseCasePilot.PageId.logout));
  this.linksPanel.add(signOut);
  signOut.addClickHandler(new ClickHandler(){
    @Override public void onClick(    ClickEvent event){
      logInService.logOut(new AsyncCallback<Void>(){
        @Override public void onFailure(        Throwable caught){
        }
        @Override public void onSuccess(        Void result){
        }
      }
);
    }
  }
);
  this.linksPanel.setSpacing(3);
  this.linksPanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_RIGHT);
  this.linksPanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_TOP);
}