Articles & Blog

Learn how to use Apache Tika with Spring Boot to automatically scan uploaded files for sensitive data like SSN, credit cards, and emails for DLP compliance.

Learn how the JVM optimizes method invocation through inline caching, virtual method tables, and adaptive optimization techniques for improved performance.

Complete guide to RAG architecture, core components, and how to build a knowledge-intensive AI system for Java developers.

Learn to build RAG knowledge bases with document preprocessing, embedding models, FAISS vector storage, and semantic retrieval.

Complete RAG workflow with LangChain: query processing, retrieval, context enhancement, generation, and optimization strategies.

Deep dive into BST vs Red-Black Tree comparison, self-balancing mechanisms, time complexity analysis, and why Red-Black Trees are used in Java's TreeMap and TreeSet.

Learn why Red-Black Trees exist, their properties, rotation mechanisms, color transformation rules, and how they compare to AVL trees in the JDK.

Complete guide to implementing scheduled order cancellation using Quartz with task persistence, dynamic job management, and REST API integration.

Learn how to automatically encrypt sensitive API responses using AES encryption with Spring Boot's ResponseBodyAdvice and Hutool toolkit.

Protect your Spring Boot application's core code from decompilation using AES encryption for JAR files with dynamic decryption at runtime.

Master Spring Data JPA with repository interfaces, Specification API, Criteria Builder, caching, batch processing, and performance optimization techniques.

Learn how to eliminate structured code duplication using Java generics and functional programming with practical pagination and async callback examples.

Deep dive into Tomcat's default connection limit design, I/O-intensive characteristics, thread pools, HTTP Keep-Alive, and practical optimization strategies.

Implement eventual consistency using RocketMQ transaction messages, local event tables, idempotent design, and compensation mechanisms in Spring Boot.

Master Change Data Capture with Debezium and Kafka Connect for production-grade real-time data synchronization from MySQL binlog to Redis cache.

Master Spring JDBCTemplate with query operations, batch processing, RowMapper, streaming queries, stored procedures, and optimistic locking.

Learn the LRU cache eviction algorithm with LinkedHashMap and custom HashMap + doubly linked list implementations in Java.

Implement real-time data sync between data centers using Spring Boot, MySQL master-slave replication, and Kafka message queues.

Implement order status transitions using Spring Statemachine with persistence, state recovery, and conditional guards for complex workflows.

Learn best practices for ensuring data consistency across time zones using UTC standardization, DST handling, and centralized time management.

Ollama has released an official UI, making it easier than ever to run local LLMs without command line. Learn about this exciting update and how to get started.

Master the key differences between deep copy and shallow copy in Java. Understand when to use each, their implementation methods, and ace your JVM interview questions.

Explore how Spring AI integrates with Google Vertex AI for powerful multimodal computing capabilities. Learn about embedded models and their amazing potential.

A deep dive into why Java remains relevant in 2025, the role of reverse proxies, SSL termination, and proper architecture design for enterprise systems.

Deep dive into Redis concurrent key contention, atomic operations, Lua scripts, distributed locks, and CAS approach for handling concurrent access.

A deep dive into JDK vs CGLIB dynamic proxies, their implementation differences, performance characteristics, and how Spring AOP chooses between them.

Deep dive into Spring AOP vs AspectJ AOP, implementation methods, internal method calls limitation, and real interview experiences with practical solutions.

Deep analysis of synchronized methods vs synchronized blocks from performance, flexibility, and readability perspectives with practical usage scenarios.

Learn how TOON format reduces token costs by 40-60% compared to JSON while improving LLM accuracy, with Java usage guide included.

Fix for Spring Boot 3.3.5+ where JPA auto-generated table columns don't match Entity variable order. Updated solution for the latest Hibernate version.

A comprehensive guide to reading request parameters in Spring Boot: @RequestParam, @PathVariable, @MatrixVariable, @RequestBody, @RequestHeader, and @CookieValue.

Learn how to configure dynamic schema in Spring Boot for SaaS applications with multi-tenant data isolation using runtime database switching.

Deep dive into Jackson performance issues under high concurrency, optimization strategies including @JsonView, custom serializers, and when to use alternatives.

Compact source files, flexible constructors, Scoped Values, module imports, AOT profiling, and generational Shenandoah GC explained with examples.

Learn to integrate multiple LLMs from different vendors with automatic failover using Spring AI and Spring Retry for resilient chatbots.

Prevent duplicate scheduled task execution in multi-instance Spring Boot deployments using ShedLock with database-backed distributed locking.

Comprehensive analysis of Spring Boot 4 and Spring Framework 7 with API versioning, declarative HTTP clients, built-in resilience, and cloud-native improvements.

A beginner-friendly guide to encryption: symmetric (AES) vs asymmetric (RSA), public/private key pairs, and real-world use cases in payment integrations.