Java Resources

Boost throughput with RESTEasy Reactive in Quarkus 2.2

With the new 2.2 release, Quarkus continues to improve in terms of network-related features, reactive programming, and integration with the Eclipse Vert.x event bus.

November 9, 2021

by Daniel Oh

CORE

· 6,352 Views · 1 Like

Creating Mappers Without Creating Underlying Objects in Java

In this short tutorial, we will devise a way of making an object-creation-free, lightweight mapper with rudimentary lookup capability that is suitable for a limited number of associations.

Updated November 8, 2021

by Per-Åke Minborg

· 8,097 Views · 5 Likes

Separation of Reactive and Non-Reactive Code

Avoid unexpected behavior caused by mixing reactive and non-reactive logic when using Project Reactor.

November 7, 2021

by Flaviu Muresan

· 7,906 Views · 6 Likes

From Spring Boot Microservices to Lambda Functions

Get your microservices where they need to be.

November 6, 2021

by Ben Foster

· 33,269 Views · 10 Likes

Add gRPC to Your Java Application

Learn how to autogenerate gRPC code, back a gRPC service with implementation, and spin up a server to send a response to a client.

November 5, 2021

by Emmanouil Gkatziouras

CORE

· 8,312 Views · 11 Likes

How to Avoid Stalling in Reactive Java Applications

We'll go over some core Reactor principles, introduce the Scheduler abstraction, describe how it's used to encapsulate blocking code, and more.

November 3, 2021

by Jimena Garbarino

· 3,168 Views · 1 Like

Camel Quarkus With CouchDB Component

Learn to use Apache Camel Quarkus and CouchDB Component to build a REST API. Camel Quarkus CouchDB Component helps to connect, produce, or consume messages.

November 3, 2021

by Rafael Marques

· 14,102 Views · 2 Likes

Aggregating REST APIs Calls Using Apache Camel

In this post, we are going to build an aggregator for API calls using the Enricher EIP. A tutorial on how to aggregate sequential calls to REST APIs in a single response.

November 3, 2021

by André Luiz De Gusmão

· 22,979 Views · 2 Likes

You only need ONE design pattern

Do you want to know a secret? OOP is fundamentally brain damaged. These aren't my words for the record, they're the collective wisdoms of the fathers of computing.

October 30, 2021

by Thomas Hansen

CORE

· 7,469 Views · 2 Likes

We Should Write Java Code Differently

This article focuses on how you can improvise coding in Java to utilize it to its fullest.

October 28, 2021

by Sergiy Yevtushenko

· 43,161 Views · 33 Likes

How to Easily Set Up Mutual TLS SSL

Learn how to easily set up mutual, two-way TLS SSL on your application in this tutorial that walks you through how to protect your app.

Updated October 28, 2021

by Hakan Altındağ

· 167,050 Views · 42 Likes

Connect to a Database Instance Running Inside a Java Testcontainer Using IntelliJ IDEA

Learn how to use IntelliJ IDEA along with Testcontainers and JUnit to write effective unit tests for your Java module that communicate with databases.

October 27, 2021

by Sumit Kumar

· 5,943 Views · 2 Likes

Ultra-fast Java In-Memory Database Apps & Microservices with MicroStream

MicroStream is a fundamentally new persistence framework for storing complex Java object graphs natively, which means the object graph is stored on disk as it is in RAM.

October 26, 2021

by Otavio Santana

CORE

· 15,836 Views · 5 Likes

Common Challenges of Automation Testing

Software testing is crucial to ensure software quality. However, there are many common challenges of automation testing, from scalability to maintenance.

October 26, 2021

by Kamal Singh

· 6,078 Views · 2 Likes

How To Copy Files From One Directory to Another in Java: Example

Read this tutorial to learn how to use JDK7 FileChannel.transferTo() method to copy files and directories in Java, as well as FileUtils from Apache Commons.

October 23, 2021

by Javin Paul

· 16,255 Views · 3 Likes

How to Change Certificates At Runtime Without Downtime

In this article, see how to change certificates during runtime without taking the application down

Updated October 23, 2021

by Hakan Altındağ

· 37,419 Views · 12 Likes

What Is Ant, Really?

Learn about the structure of the Ant build system and how to make it work for you. Understand how you can harness it in different environments and what the pitfalls are.

Updated October 22, 2021

by Jörn Guy Süß

· 16,068 Views · 7 Likes

How To Get Closer to Consistency in Microservice Architecture

Some scenarios in microservice-based architecture involve multiple microservices. Read how completion of the scenario depends on the task completion of each microservice.

October 20, 2021

by Reza Ganji

CORE

· 10,346 Views · 10 Likes