Java Resources

Extending Swagger and Springdoc Open API

Learn how to use Swagger schema extensions, and document additional constraints that would otherwise remain undocumented, including custom validators.

Updated April 17, 2024

by Raghuraman Ramaswamy

CORE

· 53,740 Views · 15 Likes

Doing More With Springdoc OpenAPI

Learn how to render fully qualified names in the generated Swagger documentation and global exception handling using Controller Advice.

Updated April 17, 2024

by Raghuraman Ramaswamy

CORE

· 112,592 Views · 26 Likes

OpenAPI 3 Documentation With Spring Boot

In this tutorial, try out a Spring Boot Open API 3-enabled REST project and explore some of its capabilities.

Updated April 17, 2024

by Raghuraman Ramaswamy

CORE

· 119,610 Views · 16 Likes

Real-Time Data Transfer from Apache Flink to Kafka to Druid for Analysis/Decision-Making

In this article, follow an outline of the steps to transfer processed data from Flink 1.18.1 to a Kafka 2.13-3.7.0 topic.

April 15, 2024

by Gautam Goswami

CORE

· 2,749 Views · 2 Likes

Comprehensive Guide to Unit Testing Spring AOP Aspects

With proper testing strategies in place, developers can confidently maintain and evolve AOP-based functionalities in their Spring app.

April 15, 2024

by Reza Ganji

CORE

· 7,119 Views · 4 Likes

Analyze and Debug Quarkus-Based AWS Lambda Functions With X-Ray

Use Quarkus and AWS X-Ray with Jakarta CDI Interceptors to keep your code clean.

April 13, 2024

by Jeroen Reijn

CORE

· 3,906 Views · 4 Likes

How to Generate a Keystore and CSR Using the Keytool Command

Want to learn more about using the Java keytool command?

Updated April 12, 2024

by Arjun P Jathindramohan

· 176,319 Views · 10 Likes

Building CI/CD Pipelines for Java Using Azure DevOps

Visual Studio Team Services has become Azure DevOps. Java devs can learn how to build a release automation pipeline for their web applications.

Updated April 11, 2024

by Ruth Yakubu

· 47,529 Views · 5 Likes

Improving Java Code Security

In this article, discover how to improve code quality and security with the tools SpotBugs/FindSecBugs and OWSAP Dependency Scan.

April 11, 2024

by Vinod Pahuja

· 10,163 Views · 5 Likes

Singleton: 6 Ways To Write and Use in Java Programming

Here, learn how and when to write singletons and gain an appreciation of the nuances and caveats in creating singleton objects.

April 9, 2024

by Narendran Solai Sridharan

· 9,602 Views · 7 Likes

Understanding Polyglot Persistence

Polyglot persistence enables software professionals to enhance Java applications with NoSQL databases, achieving greater flexibility, scalability, and efficiency.

April 5, 2024

by Otavio Santana

CORE

· 12,589 Views · 3 Likes

Developing a Multi-Tenancy Application With Spring Security and JWTs

This article guides you through the process of creating a multi-tenancy application following a Software as a Service (SaaS) model, where each client has a dedicated database.

Updated April 4, 2024

by Md Amran Hossain

CORE

· 70,692 Views · 22 Likes

Game Theory in Blockchain: A Developer's Guide With Java Example

Enhance blockchain stability, security, and efficiency with game theory. Shape consensus mechanisms, incentives, and governance in a Java-based PoS simulation.

April 4, 2024

by Arun Pandey

CORE

· 3,880 Views · 2 Likes

Spring Boot Application With Spring REST and Spring Data MongoDB

In this article, we will create a simple Spring Boot application that performs CRUD operations with Spring REST and MongoDB.

April 4, 2024

by Vanitha P K

· 8,300 Views · 3 Likes

Mastering the JVM: Elevating Java Development and Career Prospects

Understanding JVM internals, memory management, and garbage collection boosts efficiency and performance — a crucial step for creating robust, scalable Java applications.

April 2, 2024

by Otavio Santana

CORE

· 5,177 Views · 4 Likes

How To Implement OAuth2 Security in Microservices

Learn to implement OAuth2 Security in microservices distributed systems using OAuth2, Oauth2-Client, Spring Cloud, and Netflix components with full examples.

Updated March 29, 2024

by Md Amran Hossain

CORE

· 101,098 Views · 17 Likes

Java 22 Brings Major Enhancements for Developers

Java 22 brings major enhancements for developers, including language improvements, concurrency updates, native interoperability, and performance optimizations.

March 29, 2024

by Tom Smith

CORE

· 9,580 Views · 9 Likes

The Power of LLMs in Java: Leveraging Quarkus and LangChain4j

This post attempts to demystify the use of LLMs in Java, with Quarkus and LangChain4j, across a ludic and hopefully original project.

March 28, 2024

by Nicolas Duminil

CORE

· 6,032 Views · 5 Likes

How To Get Started With New Pattern Matching in Java 21

Dive into pattern matching, a powerful new feature in Java 21 that lets you easily deconstruct and analyze data structures. Follow this tutorial for examples.

March 26, 2024

by Daniel Oh

CORE

· 9,374 Views · 15 Likes

Converting ActiveMQ to Jakarta (Part II)

In this article, learn more about migrating a mature code base to Jakarta based on the impacts of the new Jakarta framework.

March 25, 2024

by Matt Pavlovich

· 1,308 Views · 1 Like

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