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Guide to Java Diff Utils
1. Overview In modern software development, tracking and visualizing changes between different versions of files or content is vital. Whether we’re building a version control system, a collaborative...
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Authorize Request for Certain URL and HTTP Method in Spring Security
1. Overview Securing resources based on user roles and HTTP methods in web application development is essential to prevent unauthorized access and manipulation. Spring Security provides a flexible and...
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Event-Driven LISTEN/NOTIFY Support in Java using PostgreSQL
1. Introduction In this article, we’re going to take a look at the LISTEN and NOTIFY commands within PostgreSQL. We’ll see what they are, how they can be used, and how we can utilize them from within...
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Java Weekly, Issue 598
1. Spring and Java >> Java’s Structured Concurrency: Finally Finding Its Footing [foojay.io] The Structured Concurrency API will continue as a preview feature in JDK 25, but with several...
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How to Resolve “Could Not Autowire...
1. Introduction In this tutorial, we’ll explore how to solve a common error we may encounter when implementing email functionality using Spring Boot. We’ll focus on understanding the “Could not...
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Transactional Messaging for Microservices Using Eventuate Tram
1. Overview In this tutorial, we’ll explore the challenges of maintaining data consistency between database operations and messaging. We’ll begin by examining the problem and then implement the...
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Implementing Unions in Hibernate
1. Introduction In this tutorial, we’ll explore how to use the union operation in Hibernate to unify results from two related database entities. At Baeldung University, information about part-time...
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Java Weekly, Issue 599
1. Spring and Java >> Java 25 Integrates Compact Object Headers with JEP 519 [infoq.com] Compact Object Headers move from experimental to product feature in JDK 25. This enhancement has been...
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Text-to-SQL Implementation Using Spring AI
1. Overview Modern applications are increasingly using natural language interfaces to simplify user interaction with systems. This is particularly useful for data retrieval, where non-technical users...
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HashMap Implementation to Count the Occurrences of Each Character in Java
1. Overview Counting how many times each character appears in a string is a common and practical task in Java. Whether we’re processing user input, analyzing text, or solving algorithm problems,...
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Introduction to Ambassador Design Pattern
1. Introduction One common task when working with cloud applications is writing code that communicates with external applications via the network. For that, we can leverage the Ambassador Pattern to...
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Building Open API Documentation Using YML File in Resources Folder
1. Introduction In this tutorial, we’ll generate Swagger UI for REST endpoints using a YML file and schema reference. We’ll keep all the code needed to generate APIs separate, following the Swagger...
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Faking OAuth2 Single Sign-on in Spring
1. Overview We often need to implement OAuth2 Single Sign-on in applications. With it, users logged in once can enjoy accessing other apps without logging in again and again. Typically, it has an...
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Using the Model Context Protocol With Quarkus and Langchain4j
1. Overview With the arrival of Large Language Models (LLMs), teams are increasingly integrating AI into their applications. AI integration is no longer limited to simple question-answering. Model...
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Cleaning Spring Properties Files
1. Overview While we’re creating configuration properties for our Spring projects, we may choose to split them across multiple files. It’s common to have different properties by Spring profile. Over...
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How to Implement Retry for JUnit Tests
1. Overview Automated tests are an essential part of modern software development. However, not all test failures are caused by bugs. Some failures are flaky, occurring intermittently due to reasons...
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One Reader with Multiple Processors and Writers in Spring Batch
1. Introduction In this tutorial, we’ll explore how to implement a Spring Batch job with one reader, multiple processors, and multiple writers. This approach is useful when we need to read data once,...
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Introduction to DiceDB
1. Introduction Efficiently storing and retrieving data is a core challenge in software development. Developers want to depend on fast and reliable tools that manage data with minimal overhead. DiceDB...
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Hibernate ORM With Panache
1. Overview Hibernate is one of the most popular ORM frameworks, offering a rich set of features that simplify seamless access to the database layer. In this tutorial, we’ll explore an extension to...
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Java Weekly, Issue 600
We’re at a cool 600 Thanks for being along for the ride. 1. Spring and Java >> Demystifying Spring Boot With Spring Debugger [blog.jetbrains.com] Debugging a framework that does most of the work...
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