Kotlin allows you to put method implementation in an interface. The same mechanism can be found in Java interfaces as default methods (and also Groovy or Scala traits). Read more
Tag: java
Testing Kotlin with Spock Part 2 – Enum with instance method
Testing Kotlin with Spock Part 2 – Enum instance method
The enum class with instance method in Kotlin is quite similar to its Java version, but they are look a bit different Read more
MapStruct mapper injection in OSGi Blueprint
Deploy WSDL file as OSGI Bundle in Apache Karaf
Formatting Java Time with Spring Boot using JSON
The aim of this post is to summarize and review ways of formatting Java Time objects using Spring Boot and Jackson library.
This post is organized in five steps. Each step Read more
Do not use AllArgsConstructor in your public API
Introduction
Do you think about compatibility of your public API when you modify classes from it? It is especially easy to miss out that something incompatibly changed Read more
Primitives and its wrapped types compatibility
Introduction
How often do you think about possible changes in your API? Do you consider that something required could become optional in future? How about compatibility Read more
Scheduling tasks using Message Queue
Introduction
How to schedule your task for later execution? You often create table in database, configure job that checks if due time of any task occured and then execute Read more
How to recover after Hibernate’s OptimisticLockException
I’ve read many articles about optimistic locking and OptimisticLockException itself. Problem is that each one of them ended up getting their first exception Read more
Spring Boot and AngularJS quick start
In this post I am going to show very simple and quick example of web application using Spring Boot with AngularJS. This app contains simple functionality of sending and
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