Introduction Spring Boot Actuator is a powerful set of tools that empowers developers and operators to monitor and manage Spring Boot applications with ease. In this comprehensive guide, we’ll explore the key features of Spring Boot Actuator, delve into code examples, and address frequently asked questions to help you harness the full potential of this…
In the world of web development, building high-performance APIs is a must. As more users and requests flood in, optimizing your API’s performance becomes crucial. Spring, a popular Java framework, offers a powerful solution by introducing asynchronous programming using @Async and CompletableFuture. APIs running on Spring Boot are great, but once that traffic ramps up,…
Spring Framework provides powerful dependency injection capabilities, allowing you to easily manage the components and their dependencies in your application. However, it’s not uncommon to encounter situations where a field annotated with @Autowired is unexpectedly null. In this article, we’ll explore common reasons for this issue and provide solutions to help you troubleshoot and resolve…
Java 21 introduced a new built-in HTTP client API called HttpClient to replace the older HttpURLConnection. HttpClient uses an asynchronous, non-blocking approach for better performance. However, its threading model includes one controversial design choice – thread pinning. In this comprehensive guide, we’ll dig into how it works, the issues it can cause, and techniques to…
JSON (JavaScript Object Notation) is a popular and versatile data format used for data exchange in many applications. Parsing JSON in Java, or the process of extracting data from JSON, is a fundamental skill for developers. In this beginner-friendly guide, we’ll explore how to parse JSON in Java using the widely adopted Jackson library. By…
In the dynamic landscape of Java development, creating Docker images for multi-module projects can sometimes be a challenging endeavor, especially when using the latest Java version and Spring framework. In this article, we’ll explore a common issue and its solutions when dealing with Maven Jib and multi-module projects in the context of Java 21 and…
Dockerizing Java apps using Jib is a powerful way to simplify the Docker image build process. If you’re working on a multi-module Maven project and need to create Docker containers for your modules, this guide will assist you in setting up Maven Jib effectively. We’ll walk through the necessary steps, provide detailed explanations, and address…
Introduction Java 21 introduces a groundbreaking feature, “Java 21 Sequenced Collections,” within the Java Collections Framework. This innovation brings forth the SequencedCollection interface and a series of default methods that seamlessly integrate with existing collection interfaces like List, Deque, and SortedSet. Java 21 Sequenced Collections revolutionize the way you handle collections, emphasizing the importance of…
If you’ve ever tried to install Java on your computer and received a mysterious error message with code java error 1603, you’re not alone. This error can be a real headache, but fear not, as we’ll break down what it means and guide you through the steps to fix it. What Does Error Code 1603…
Introduction As Java continues to evolve, developers are blessed with new and exciting features that enhance the language’s capabilities. One such feature that’s been introduced in Java 21 is pattern matching for the switch statement. This new addition to the language brings a lot to the table, making our code more expressive, concise, and safer….
Introduction Java 21 brings a game-changing feature to the world of programming: records. These are more than just Plain Old Java Objects (POJOs); they are a concise and expressive way to define immutable data classes, providing a host of benefits. In this article, we’ll explore records in Java 21 and understand why they’re creating a…
In the ever-evolving landscape of programming, staying up-to-date with the latest advancements is crucial. Java, a venerable language with a history of innovation, has recently released Java 21, and it’s packed with features that are set to redefine the way we code. In this comprehensive guide, we will delve into the details of Java 21,…
