JAVAPRO’s Post

One of the most valuable Java patterns in production: Immutable DTOs with Records + Builder: In real-world Java applications (Spring Boot APIs, microservices, event systems), we create hundreds of DTOs. The best modern pattern in 2026: Records (immutable by default) + Builder pattern for flexible construction.Benefits:Immutable → thread-safe and predictable No boilerplate getters/setters Builder gives nice fluent API for optional fields Excellent integration with Jackson, validation, and MapStruct Realistic production example below #Java #SpringBoot

Devlog #13 - PulseNotify Continuing with the microservice: user-service - UserAccountRepository and UserPreferenceRepository created - DTOs as Java Records: CreateUserRequest and UserResponse - Fixed a timezone issue in the Flyway migration and the UserService entity to avoid future bugs Repo: https://lnkd.in/d4rtYMAa #Java #SpringBoot #Microservices #BuildingInPublic #TechJobs

Devlog #14 - PulseNotify Service layer for user-service done. Today: - UserNotFoundException and UserAlreadyExistsException for specific error handling and GlobalExceptionHandler with @ControllerAdvice for structured API responses - UpdateUserRequest DTO as Java Record - UserService with full CRUD + deactivate method Tomorrow I can start with the controller and probably the tests. Step by step the project keeps growing, consistency is key. Link to Github in comments #Java #SpringBoot #Microservices #BuildingInPublic #TechJobs

Key Features in the Last 4 LTS Releases of Java This infographic covers major features across Java 8, 11, 17, 21, and 22: Java 8 — Lambda, Stream API, Date/Time API, Optional class Java 11 — HTTP Client, var in lambdas, String improvements Java 17 — Sealed classes, Records, Pattern Matching, Enhanced Switch Java 21 — Virtual Threads, Sequenced Collections, Pattern Matching for switch Java 22 — Unnamed Variables, Streams for Primitives, Statements before super() A quick reference for Java developers to track language evolution across LTS versions. #Java #JavaDeveloper #Java8 #Java11 #Java17 #Java21 #Java22 #LTS #Programming #SoftwareDevelopment #BackendDevelopment #SpringBoot #CodeNewbie #100DaysOfCode #TechEducation #LearnJava #JavaProgramming #OpenJDK #VirtualThreads #LambdaExpressions #LinkedInTech

Started with Spring Framework ! It’s a powerful Java framework used to build scalable and maintainable applications. Learned the key features of Spring Framework : Dependency Injection, Aspect-Oriented Programming (AOP), Transaction Management, Spring MVC, Spring Security, Spring Data, Spring Batch, Integration with Other Frameworks. This changes how we write Java applications completely #SpringFramework #Java EchoBrains

The ultimate Java Backend Cheat Sheet. 📄🔥 Everything you need to master: 🔹 Core & Advanced Java 🔹 Spring Boot & REST APIs 🔹 SQL & Performance Tuning 🔹 Testing (JUnit/Mockito) 🔹 Git & GitHub Download/Save the document below! Found this helpful? 👉 Follow Surya Mahesh Kolisetty for more. 👉 Repost for your fellow devs. #SoftwareDevelopment #Backend #Java #LearningResources #TechTips #Developers #cfbr #connections

Key Features in the Last 4 LTS Releases of Java This infographic highlights major features across Java 8, 11, 17, 21, and 22: - Java 8: Lambda, Stream API, Date/Time API, Optional class - Java 11: HTTP Client, var in lambdas, String improvements - Java 17: Sealed classes, Records, Pattern Matching, Enhanced Switch - Java 21: Virtual Threads, Sequenced Collections, Pattern Matching for switch - Java 22: Unnamed Variables, Streams for Primitives, Statements before super() This serves as a quick reference for Java developers to track language evolution across LTS versions. #Java #JavaDeveloper #Java8 #Java11 #Java17 #Java21 #Java22 #LTS #Programming #SoftwareDevelopment #BackendDevelopment #SpringBoot #CodeNewbie #100DaysOfCode #TechEducation #LearnJava #JavaProgramming #OpenJDK #VirtualThreads #LambdaExpressions #LinkedInTech

HTTP status codes made more sense when I started using them in real APIs 👇 They’re not just numbers — they tell you exactly what happened with a request Using the right status codes makes your APIs easier to debug and more predictable Still learning, but this small detail makes a big difference 💡 #BackendDevelopment #APIs #Java #Developers #WebDevelopment #LearningInPublic

One thing that becomes increasingly important as systems grow is structured logging. In smaller applications, simple logs often work fine. But once multiple services start interacting, finding the root cause of an issue can quickly become difficult. In one system I worked on, introducing consistent log formats and correlation IDs across services made a huge difference. It became much easier to trace requests flowing through different components and identify where failures were happening. Logging sometimes feels like a minor detail during development, but in production it often becomes one of the most valuable tools for debugging distributed systems. Spending a little extra effort on logging early can save a lot of time later when something goes wrong. #SoftwareEngineering #Microservices #BackendDevelopment #Java

💡 Why is Java still a top choice for enterprise applications? Because enterprise systems require more than just fast development — they demand stability, scalability, and long-term reliability. Java continues to stand out because it offers: • Highly Scalable: Handles large, complex user bases & growth. • Robust Security: Strong security features, sandboxing & safe memory. • Microservices-Ready: Built for modular, efficient, and distributed architectures. • Powerful Multithreading: Efficient parallel processing and high performance. • Platform Independent: Runs on various OS with Java Virtual Machine. • Extensive Ecosystem: Huge library support, community & enterprise tools. That’s why Java is still widely used to power enterprise software across the world. #Java #EnterpriseSoftware #BackendDevelopment #SoftwareEngineering