Interested to learn about Log4Shell vulnerability? Check our article talking about the Log4Shell vulnerability and how to fix it.

Learn about the difference between PUT and PATCH HTTP methods, and their implications when building your Spring API.

Everything you need to know to build a Spring Boot Starter bringing a cross-cutting concern to any Spring Boot application.

A quick list of the most popular articles from 2013, by number of views.

The High-Performance Java Persistence Newsletter features articles, videos, and answers to common StackOverflow questions.

<p>Hi, Spring fans! Welcome to another installment of <em>This Week in Spring</em>, the first in the new year! (Happy new year!) This week also marks the 11th anniversary of <em>This Week in Spring</em>, which I started writing on the first Tuesday of January…

Explore how to define custom attributes in HTML5 tags using Thymeleaf.

This article describes several useful but not very well-known features of Java like DelayQueue, Phaser or BitSet.

<p>The Spring Framework 5.3.14 and 5.2.19 <a href="https://spring.io/blog/2021/12/16/spring-framework-5-3-14-and-5-2-19-available-now">releases on December 16</a> included fixes for <a href="https://tanzu.vmware.com/security/cve-2021-22060">CVE-2021-22060</a>…

Level up your Java code and explore what Spring can do for you.

<p>Hi, Spring fans, and happy new year! In this installment, <a href="https://twitter.com/starbuxman">Josh Long (@starbuxman)</a> talks to Spring Cloud co-founder, legend, and the all-around nice guy <a href="https://twitter.com/spencerbgibb">Spencer Gibb…

Learn how to map a YAML list into a java List using Spring Boot.

Learn how to set up OAuth2 for a Spring REST API using Spring Security 5 and how to consume that from an Angular client.

Strings, StringBuffer, StringBuilder and StringTokenizer. Different ways to process strings. In this post, I show how to use Strings in Java.

A guide on how to set up your Spring Boot applications to emit traces and analyze them with Jaeger

Heap Memory, Stack Memory, Non-Heap Memory. In this post, I talk about Java memory management. How does Java garbage collect?

A guide to creating a new, custom security expression with Spring Security, and then using the new expression with the Pre and Post authorize annotations.

Customize OAuth2 client requests in Spring Security 5

<p>Hi, Spring fans! How’re you? I’m fresh off my three weeks respite and this is my first blog back on the clock officially! It’s so good to be back. I’ve been busy over the break, working on updating my <a href="https://joshlong.com">blog</a> and on updating…