Java Resources

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

· 5,956 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

· 15,863 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

· 6,097 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

· 16,297 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

· 37,485 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

· 16,120 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

· 10,392 Views · 10 Likes

How to Export All Modules to All Modules at Runtime in Java

In this article, take a look at a solution as to how to export all modules to all modules at Runtime in Java 9.

October 19, 2021

by Jim Jerald Burton

· 10,364 Views · 11 Likes

Easy Access to OAuth 2.0 Protected Resources With the Spring WebClient

Learn how to secure an application with Okta OIDC login, access a third-party OAuth 2 resource with Spring WebClient, and more.

October 18, 2021

by Jimena Garbarino

· 4,639 Views · 3 Likes

Dataweave 2.4.0 Dates Module Functions

This blog gives the details of the dw::core::Dates module functions which are released in DataWeave version 2.4.0 for Mule Version 4.4.

Updated October 18, 2021

by Anand Joshi

· 23,743 Views · 6 Likes

Micronaut, Quarkus, and Spring Boot Help You Develop Native Java Apps

Build Java apps securely.

Updated October 16, 2021

by Matt Raible

· 10,326 Views · 5 Likes

Fluent Assertions Reloaded

If you’re not using fluent assertions and rely on basic JUnit assertions, you might be missing out on a simple but effective tool to write high-quality test code.

October 16, 2021

by Johannes Döbler

· 6,428 Views · 6 Likes

Multithreading Java and Interviews Part 2: Mutex, the Java Monitor Model

In the second installment of Multithreading and Interviews, read an introduction to the basics of Java Multithreading with Mutex, the Java Monitor Model.

Updated October 14, 2021

by Dmitry Egorov

CORE

· 27,411 Views · 24 Likes

Microservices: Quarkus vs Spring Boot

In the era of containers (the ''Docker Age'') Java is still on top, but which is better? Spring Boot or Quarkus?

Updated October 13, 2021

by Ualter Junior

· 146,786 Views · 42 Likes

gRPC Compression Support in Go, Java, and Ballerina

Different programming languages have different ways to enable/disable gRPC compression. This article describes how to use gRPC in Go, Java, and Ballerina.

October 13, 2021

by Buddhi Kothalawala

· 16,514 Views · 4 Likes

Deploying a Kotlin App to Heroku

In this post, we'll take a quick look at how to develop an app in Kotlin. We'll build a simple API with a PostgreSQL database and deploy it to Heroku to see it live.

October 13, 2021

by Michael Bogan

CORE

· 7,077 Views · 3 Likes

Improving Backend Performance Part 1/3: Lazy Loading in Vaadin Apps

In this article, I'll show you how easy it is to take advantage of Spring Boot data to easily implement lazy loading in Vaadin Flow applications.

October 12, 2021

by Alejandro Duarte

CORE

· 7,662 Views · 7 Likes

How Java Optional Evolved Over Time

If you are interested in when particular feature was introduced to Optional API. Here you will find description of its evolution form Java 8 to present times.

Updated October 11, 2021

by Bartłomiej Żyliński

CORE

· 19,407 Views · 23 Likes

Realistic Test Data Generation for Java Apps

Might as well make it real.

Updated October 10, 2021

by Alejandro Duarte

CORE

· 22,064 Views · 6 Likes

Faster Maven Builds in Docker

We've looked at faster Maven builds. Now let's get containers involved.

October 10, 2021

by Nicolas Fränkel

· 10,062 Views · 3 Likes

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