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Blockchain Development with Java: Smart Contracts & DApps

This article explores Java's role in blockchain development, focusing on smart contract and DApp creation. While not dominant, Java's mature ecosystem, OOP features, and platform independence make it suitable, particularly for enterprise integration

Mar 07, 2025 pm 05:45 PM

Check Logs In A Spock Test Example

This article demonstrates verifying log messages in Spock unit and integration tests. Unit tests use Mockito to mock loggers and verify method calls, while integration tests leverage Logback appenders to capture and assert log messages directly. Be

Mar 07, 2025 pm 05:44 PM

Hibernate Envers – Extending Revision Info with Custom Fields

This article details extending Hibernate Envers' revision tracking with custom fields. It addresses adding context-specific data (e.g., application name, client IP) to the default revision information by creating a custom revision entity extending t

Mar 07, 2025 pm 05:43 PM

Profiling Java Apps with Flight Recorder & Mission Control

This article details Java Flight Recorder (FR) and Mission Control (MC) for profiling Java apps. It explains how FR collects JVM data and MC analyzes it to identify performance bottlenecks related to CPU, memory, I/O, threads, and locks. The articl

Mar 07, 2025 pm 05:43 PM

Project Loom vs. Traditional Threads: Java Concurrency Revolution

Project Loom revolutionizes Java concurrency with lightweight virtual threads, contrasting traditional heavyweight OS threads. This improves performance, simplifies development by reducing complexity, and enhances resource utilization. However, com

Mar 07, 2025 pm 05:42 PM

Hugging Face Models With Spring AI and Ollama Example

This article details integrating Hugging Face models into a Spring AI application, using Ollama for deployment. It outlines a sentiment analysis example, focusing on model selection, Ollama deployment via API, Spring AI integration for request handl

Mar 07, 2025 pm 05:41 PM

Working With Reactive Kafka Stream and Spring WebFlux

This article explores building responsive, scalable event-driven apps using Reactive Kafka Streams and Spring WebFlux. It emphasizes efficient backpressure handling via Kafka consumer settings and Project Reactor operators, and advocates comprehens

Mar 07, 2025 pm 05:41 PM

Advanced Java Performance Tuning for Low-Latency Systems

This article examines Java performance tuning for low-latency systems. It addresses key bottlenecks like garbage collection pauses, I/O operations, inefficient algorithms, and concurrency issues. Strategies for optimizing garbage collection, effic

Mar 07, 2025 pm 05:40 PM

Quarkus vs. Spring Boot vs. Eclipse Vert.x: Performance and Developer Experience Compared

This article compares Quarkus, Spring Boot, and Eclipse Vert.x, focusing on performance, developer experience, and scalability. Quarkus excels in speed and resource efficiency, while Spring Boot offers a mature ecosystem. Vert.x provides high throug

Mar 07, 2025 pm 05:39 PM

Java JDBC executeQuery() DML Error Resolution

This article explains Java JDBC's executeQuery() method limitations. It highlights that executeQuery() is solely for SELECT statements; using it with DML (INSERT, UPDATE, DELETE) causes SQLException. The article advocates for using executeUpdate() f

Mar 07, 2025 pm 05:39 PM

PostgreSQL Hibernate 6 JSON Example

This article demonstrates efficient JSONB data storage and retrieval using PostgreSQL and Hibernate 6. It highlights best practices including leveraging PostgreSQL's JSONB type and operators within JPQL queries, strategic indexing (GIN, partial), an

Mar 07, 2025 pm 05:38 PM

Kafka Message Acknowledgement Options

This article examines Kafka's message acknowledgement options: automatic, manual synchronous, manual asynchronous, and manual with specific offsets. It analyzes their performance trade-offs between throughput and reliability, guiding readers in sele

Mar 07, 2025 pm 05:37 PM

Optimize Spring Boot Startup Time: Tips & Techniques

This article addresses slow Spring Boot startup times, a key performance issue impacting user experience. It explores common causes like excessive auto-configuration, numerous dependencies, and inefficient data handling. Solutions include dependenc

Mar 07, 2025 pm 05:37 PM

Selenium Datepicker Example

This article discusses automating date selection in Selenium tests. It addresses challenges like dynamic elements, hidden elements, and asynchronous loading within various datepicker libraries. Effective Selenium commands (findElement, click, XPat

Mar 07, 2025 pm 05:36 PM