Spring Framework is a popular Java framework for building enterprise-level applications. It provides a wide range of features and functionalities that enable to develop high-performance, scalable, and maintainable applications. One of the key strengths of Spring is its support for design patterns. In this article, we will explore some of…

Introduction The Specification interface in Spring Data JPA is a powerful tool that allows developers to build dynamic queries with criteria-based predicates. It provides a flexible and expressive way to construct complex queries at runtime, enabling you to create more advanced and customizable data retrieval operations. With the Specification interface, you…

Introduction In the world of software development, testing plays a crucial role in ensuring the quality and reliability of applications. When it comes to testing APIs, a popular and powerful tool in the Java ecosystem is REST-Assured. …

Introduction As a developer, you know how crucial it is to ensure the accuracy and integrity of data flowing through your applications. Spring Boot provides powerful validation capabilities out of the box, but sometimes you need to go beyond the built-in validations and create custom validators tailored to your specific requirements. …

In Spring Boot Applications — Introduction Masking sensitive data in log4j logs for a Spring Boot application can be achieved by implementing a custom log appender and using regular expressions to identify and mask the sensitive information. Here’s an example of how you can do it: Step 1: Create a Custom Log Appender Create a class that extends the AppenderSkeleton class provided by…

As a Java developer, you want to make sure your programs are free of bugs. Not only do bugs cause issues for end-users, but they can also be time-consuming and frustrating to fix. To help you avoid bugs in your Java programs, we’ve compiled a list of 30 tips with…

What is Kotlin, and what is it used for? Kotlin is a statically-typed programming language that runs on the Java Virtual Machine (JVM). It’s used for developing Android apps, web applications, desktop applications, and server-side applications. What are the advantages of using Kotlin? Kotlin has many advantages, such as concise syntax, null safety, interoperability with Java, higher-order functions, and extension functions.

A Comprehensive Guide to Git — Introduction Git is a free and open-source version control system (VCS) that allows developers to track changes to their code over time. Git is widely used in the software development industry to manage and share code between team members. What is Source Control? Source control (also known as version control) is a system that helps…

Spring Boot is a popular framework for building microservices, and Prometheus is a powerful monitoring tool that can be used to monitor microservices. In this tutorial, we will go through the steps of monitoring Spring Boot microservices with Prometheus. Prometheus Prometheus is an open-source monitoring and alerting system that is widely…