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Java

More than just a cup of coffee, Java is a high-level, class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.

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Stop Mixing Up Unmodifiable Views and Immutable Lists

Stop Mixing Up Unmodifiable Views and Immutable Lists

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3 min read
From PostgreSQL to Redis: How We Reduced Authentication Latency by 98% in Production

From PostgreSQL to Redis: How We Reduced Authentication Latency by 98% in Production

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11 min read
Scaling Java with Write-Behind Caching

Scaling Java with Write-Behind Caching

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4 min read
The Squint Test: How I fix Code that looks like a Grey Brick

The Squint Test: How I fix Code that looks like a Grey Brick

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3 min read
How Do You Handle Validation Errors Globally in Spring Boot?

How Do You Handle Validation Errors Globally in Spring Boot?

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4 min read
Beyond CRUD: Designing a Multi-Tenant Data Isolation Architecture in Java

Beyond CRUD: Designing a Multi-Tenant Data Isolation Architecture in Java

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3 min read
The Multiprocessor Mindset: Safety vs. Liveness (A Beginner’s Guide)

The Multiprocessor Mindset: Safety vs. Liveness (A Beginner’s Guide)

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4 min read
Get Job at Javascript gets harder? You might need to learn the "Enterprise" Stack.

Get Job at Javascript gets harder? You might need to learn the "Enterprise" Stack.

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3 min read
Llegó MFA con Spring Security 7

Llegó MFA con Spring Security 7

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9 min read
Wednesday Links - Edition 2025-12-24 🎅🎄🎁

Wednesday Links - Edition 2025-12-24 🎅🎄🎁

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1 min read
Medical Service API - v1.0

Medical Service API - v1.0

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5 min read
Node4J — Call Java Code Natively from Node.js

Node4J — Call Java Code Natively from Node.js

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3 min read
Efficient logback logging on JVM

Efficient logback logging on JVM

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3 min read
Heap & Stack Diagram in java

Heap & Stack Diagram in java

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1 min read
Is Java a verbose programming language?

Is Java a verbose programming language?

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2 min read
What Is the Difference Between @ControllerAdvice and @RestControllerAdvice?

What Is the Difference Between @ControllerAdvice and @RestControllerAdvice?

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4 min read
Day 5: Understanding Java Operators

Day 5: Understanding Java Operators

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2 min read
🚫My Spring Boot API Accepted Invalid Data…. Until I Learned Input Validation

🚫My Spring Boot API Accepted Invalid Data…. Until I Learned Input Validation

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2 min read
About JVM Architecture

About JVM Architecture

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5 min read
Lets start with Spring AI

Lets start with Spring AI

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3 min read
ECS, Lambda, or EC2? How Hexagonal Architecture Made the Choice Irrelevant

ECS, Lambda, or EC2? How Hexagonal Architecture Made the Choice Irrelevant

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4 min read
Java - instalación y configuración en Ubuntu

Java - instalación y configuración en Ubuntu

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4 min read
Building a High-Performance SaaS for $0/mo with Java, Quarkus & Cloud Run

Building a High-Performance SaaS for $0/mo with Java, Quarkus & Cloud Run

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3 min read
🔄I Thought PUT and PATCH Were the Same… I Was Wrong

🔄I Thought PUT and PATCH Were the Same… I Was Wrong

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2 min read
Modern Java Evolution: Part 1 - From Java 22 to 25

Modern Java Evolution: Part 1 - From Java 22 to 25

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6 min read
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