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Learn how the SQL ANY operator works when using it with a subquery or a VALUES clause, as well as its NULL handling behavior.

Lazy loading of non-relational attributes in JPA requires provider-specific features. Here is a simple strategy that works with all implementations.

<p>Hi, Spring fans! Welcome to another installment of <em>A Bootiful Podcast</em>. In this installment <a href="http://twitter.com/starbuxman">Josh Long (@starbuxman)</a> talks to longtime Spring Framework engineer <a href="http://twitter.com/poutsma">Arjen…

Learn how to use Apache RocketMQ with Spring Boot.

Open Session in View is an Anti-Pattern, and this post is going to demonstrate why it is so.

Learn how to validate domain objects in Spring Boot using Hibernate Validator, the reference implementation of the Bean Validation framework.

Learn how to use arrays in the Thymeleaf template engine.

How to avoid brittle and inflexible tests for the Service Layer of a Spring web app - mock out the interactions with the database, using JUnit, Mockito and Hamcrest.

Implementation of Strategy design pattern in the light of Java 8 features.

Learn about four of the most common design patterns used in the Spring Framework

Back to the basics: one step closer to inline classes, benchmarking GC latencies, Java after 8, and why it's not a good idea to rely on averages!

With AI assistants gaining more momentum, we will have chatbots to help us in every digital aspect. I show how to implement a chatbot in Java

In this post we’ll discuss some simple steps to use Spring’s @Scheduled annotation to schedule tasks which are to be invoked automatically and executed at a specific interval of time. 1) Enab…

Project Lombok is a Java library tool that generates code for minimizing boilerplate code. The library replaces boilerplate code with easy-to-use annotations. For example, by adding a couple of annotations, you can get rid of…

An in-depth tutorial about Spring Boot's support for testing JPA database queries.

Learn about using interceptors in your Spring application with the RestTemplate.

1. RestTemplate Introduction In today's blog post we will have a look at Springs well-known rest client - the RestTemplate. The RestTemplate is the central class within the Spring framework for executing synchronous HTTP requests…

Converting a Java Map to a List is a very common task. Map and List are common data structures used in Java. A Map is a collection of key value pairs. While a List is an…