WizardStep grid.setItems gives NullPointerException

[mvmchp]

I'm sure I'm missing something, but when I try to add data to a Grid or a ComboBox inside the getContent() of a WizardStep I get a NPE.

If I change:
technology.setItems(techrepository.getTechnologies());
to:
technology.setItems("200k", "30k");
Everything works correctly.

Here's my WizardStep:

`public class CreatMonSecondStep implements WizardStep {

@Autowired
private MonitorArchiveRepository techrepository ;
private ComboBox technology;
public String getCaption() { return "Technology"; }

public Component getContent() {
    VerticalLayout content = new VerticalLayout();
    content.setSizeFull();
    content.setMargin(true);
    Label text = new Label(
            "<h2></h2><p>Choose from the following Technologies:",
            ContentMode.HTML);
    content.addComponent(text);
    technology = new ComboBox<>();
    technology.setItems(techrepository.getTechnologies());
    content.addComponent(technology);
    return content;
}
public boolean onAdvance() {    return true;    }
public boolean onBack() {      return true;    }

}`

I'm using Wizards for Vaadin 2.0.0 and Vaadin 8.0.3 with SpringBoot 1.4.3

[HSorensen]

Where does techrepository get initialized ?

[tehapo]

I would suggest you to make sure you have Vaadin Spring and/or Vaadin Spring Boot installed and you have correctly annotated your UIs to enable usage of @Autowired.

Closing the issue as the problem is not directly related to Wizards for Vaadin add-on.