Maven Helper
In case you are working with Maven, there is a really cool plugin for IntelliJ IDEA that may help you manage your dependencies and fixing conflicts. It is called Maven Helper. You can install it right from the site or…
Category Quick Tips
Leader election on k8s
The problem Sometimes there are situations on which you have an application and you need to run multiple instances of it, however there is some particular task (or set of tasks) that you would like only one instance to execute.…
What is reflection?
If you are a Java developer you probably already heard this jargon, but do you really know what it is? Definition If you look for a definition online, you may find something like: Reflection is a feature in the Java…
@Primary – use wisely
On a previous post we revised how to use @Qualifier and how it allows you to disambiguate what Bean to inject, when there are several candidates. However, that is not the the only way you can tell Spring which candidate…
@Qualifier – when to use
The usage of @Qualifier is quite simple, although people not always get it right. Lets quickly recap when to use and when it is unnecessary. Single Candidate If you are trying to inject a Bean and you only have a…