Debugging Field Injection With NetBeans - Another Reason To Delete Setters

Java EE fully supports field injection:

@Stateless
public class LegacyDataSourceConsumer {
    @Inject @Legacy
    DataSource ds;
}

You can inject resources, EJBs or CDI managed beans directly into fields since Java EE 5 and so for about 5 years. Setters or specific "injector" methods are optional. With NetBeans you can easily debug the injection with a field breakpoint. You only have to click on the grey bar left the editor to enable a field breakpoint. You should see a triangle:

By clicking on the triangle and choosing Field Breakpoint -> Properties you can setup additional behavior. The default behavior "Stop On: Field Access Or Modification" is perfect for Dependency Injection debugging. The current thread will stop (probably in a business method) at injection time. So: delete your setters and enjoy Java EE :-).

From http://www.adam-bien.com/roller/abien/entry/debugging_field_injection_with_netbeans