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Spring

Java 21 to Java 25 Upgrade Guide (with AI Prompts)

A hands-on guide to upgrading a Java 21 codebase to Java 25 LTS — build file changes, dependency bumps, breaking changes, a prioritized checklist, and six AI prompts that automate the tedious parts.

Set Up RMI and Hessian Remoting in Spring Boot 2

Learn how to configure Java RMI and Hessian remoting in Spring Boot 2 with RmiServiceExporter, HessianServiceExporter, and their proxy factory beans. Includes server and client configuration, shared interface setup, and a comparison table.

Creating Spring Beans with Static Factory Methods

Learn how to create Spring beans using static factory methods with @Bean configuration and XML. Covers third-party class registration, profile-based implementations, construction-time validation, and JUnit testing.

Top 40 Spring MVC Interview Questions and Answers (2025)

Prepare for your Java interview with the top 40 Spring MVC interview questions and answers covering DispatcherServlet, annotations, REST, validation, exception handling, and more — from beginner to advanced.

How to Use Jersey Client to Call REST Services in Java

A complete guide to consuming REST APIs with the Jersey Client API: GET, POST, PUT, DELETE requests, JSON handling, query parameters, headers, authentication, and error handling — with annotated Java code and sample output.