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Spring Oauth App-Token based Hybrid Token Verification Methods

If you’re struggling to set up a persistence-based OAuth2 module, consider trying https://github.com/patternhelloworld/spring-oauth2-easyplus App-Token based easy OAuth2 implementation built to grow with Spring Boot Complete separation of the libr

Jan 13, 2025 am 07:36 AM

Introduction to Java Programming: Beginner's Guide | Introduction to Java Programming: A Beginner's Guide

Introduction | Introduction Italian: This article is available in both Italian and English. Scroll down for the English version. English: This article is available in both Italian and English. Scroll down for the English version

Jan 13, 2025 am 07:25 AM

My ev Plan

For the first time in my life, I'm setting concrete goals for the year ahead. 2025 isn't just another year?-?it's going to be my year of intentional growth, both as a developer and as a person. I want to share my goals with you, and more importantly,

Jan 13, 2025 am 07:19 AM

Magic scopes: How Spring organizes beans

Skillful and diligent assistants, the beans, worked in the Spring workshop. Each of them was endowed with their own unique task: some created toys, some sorted candies, and some grew bright flowers. To keep the work of the workshop orderly

Jan 12, 2025 pm 10:05 PM

verify() method in Mockito example

The verify() method in Mockito is used to confirm that specific interactions with mocked objects occurred. This is particularly useful in testing when you want to ensure that a certain method was called with specific arguments during the execution of

Jan 12, 2025 pm 06:04 PM

Introducing Java Library for Backend Microservice Webflux (Reactor-core)

Link github: https://github.com/hoangtien2k3/reactify-core 1. Library Overview This library is built on the core components of Spring WebFlux and Reactor-Core – two powerful tools supporting reactive programming. With this library, you ca

Jan 12, 2025 pm 02:05 PM

Generic Functional Interfaces

Main concepts Lambda expressions cannot be generic: You cannot specify type parameters directly in a lambda expression. Functional interfaces can be generic: The target type of a lambda expression is determined

Jan 12, 2025 am 09:30 AM

Building a Unicorn-Wannabe Startup as a Solo Developer

Starting a tech company is a dream for many, but building a unicorn-wannabe startup as a solo developer? That’s a unique challenge I’ve decided to take on. In this post—a teaser for a series of blog posts—I’ll share an overview of my journey, the sta

Jan 12, 2025 am 09:22 AM

Try This as a lambda expression as an argument

Concept of Lambda Expression as Argument: A lambda expression can be passed as an argument in methods that accept compatible target types. This is useful because it allows you to pass executable code as an argument, making the code more expressive.

Jan 12, 2025 am 07:10 AM

Lettuce - A Java Redis Client

Redis is an in-memory key-value store that can be used as a database, cache, or message broker. Commands that operate on keys in Redis’ in-memory data structure allow data to be added, queried, modified, and deleted. Lettuce supports synchronous and

Jan 12, 2025 am 06:47 AM

Throw an exception from within a lambda expression

Throwing Exceptions in Lambdas A lambda expression can throw exceptions. For checked exceptions: The exception thrown must be compatible with those listed in the throws clause of the abstract method of the functional interface. Requi

Jan 12, 2025 am 06:41 AM

Lambda expressions and capturing variables

Access to Variables in the Contained Scope A lambda expression can access: Instance variables of the containing class. Static variables defined in the external class. The this parameter, which references the calling instance of the external class. Access

Jan 12, 2025 am 06:29 AM

roven JVM Optimization Techniques for Java Developers

As a best-selling author, I invite you to explore my books on Amazon. Don't forget to follow me on Medium and show your support. Thank you! Your support means the world! As a Java developer with years of experience optimizing applications, I've en

Jan 11, 2025 pm 10:04 PM

JAVA FOR BEGINNERS - General Guidelines and Environment Settings

JAVA FOR BEGINNERS (Oracle) Starting our Journey in the study group focused on learning and improving the foundations of Java. In this first moment we will study the Book: Java for Beginners SUMMARY AT THE END OF THIS

Jan 11, 2025 pm 10:03 PM