Java Resources

Java: It’s Time to Move Your Application to Java 11

In this article, we discuss the need for current Java 8 users to begin migrating to Java 11 and provide an easy solution for migration.

March 19, 2020

by Otavio Santana

CORE

· 18,521 Views · 7 Likes

Build Chatbots with Dialogflow - Step By Step Guidelines

This tutorial provides a detailed guide of how to set up create tracks and integrations for chatbots with Google's Dialogflow Agent application.

March 18, 2020

by Rahul Panchal

· 15,458 Views · 6 Likes

Lock Striping in Java

Take a look at this implementation of lock striping in Java after examining the effects of a sequential bottleneck in concurrent requests.

March 18, 2020

by Ali Dehghani

· 9,424 Views · 6 Likes

Native Memory Allocation in Java

In this article, we discuss how to better manage native memory within your containers to avoid common pitfalls.

March 18, 2020

by Petr Bouda

CORE

· 21,785 Views · 10 Likes

Reactive Messaging Examples for Quarkus

The articles service stores data in a Postgres database. Messages are sent between the microservices via Kafka.

March 18, 2020

by Niklas Heidloff

CORE

· 12,735 Views · 2 Likes

Serializable Java Lambdas

Here's an article that should help with a specific error that might occur when trying to serialize a lambda with Kryo.

March 17, 2020

by Dan Newton

· 8,878 Views · 5 Likes

Top 5 Java Frameworks for Web Application Development

In this article, we review some of the most popular frameworks for Java development in 2020 to get you developing full-stack applications quickly.

March 17, 2020

by Shivashish Thkaur

CORE

· 34,815 Views · 7 Likes

Create a Single Microservices Endpoint With GraphQL, Kotlin, and Micronaut

In today’s article, you will see an example on how to implement a GraphQL API on the JVM, particularly using Kotlin language and Micronaut framework.

March 16, 2020

by Roman Kudryashov

CORE

· 16,742 Views · 7 Likes

7 Easy Steps to Make a Facebook Messenger Bot in Java

Check out this step-by-step tutorial that shows you how to make a conversational bot using Facebook Messenger, Java, and JBot.

Updated March 16, 2020

by Ram Patra

· 27,738 Views · 12 Likes

REST API Error Handling With Spring Boot

Want to learn more about room for improvement in error handling? Check out this tutorial on REST API error handling in Spring Boot.

Updated March 16, 2020

by Ali Dehghani

· 85,633 Views · 32 Likes

8 Things Every Developer Should Know About Apache Ignite Caching

In this post, we go over how you should properly implement caching in your Ignite-based app to avoid any development headaches.

Updated March 16, 2020

by Shamim Bhuiyan

· 30,367 Views · 13 Likes

Make Slack Bots in Java in Minutes

Read up on BotKit — a framework on GitHub that lets you make your own cloud-ready Slack bot in mere moments.

Updated March 16, 2020

by Ram Patra

· 77,843 Views · 27 Likes

ConcurrentHashMap: Call Only One Method Per Key

Using the ConcurrentHashMap in a thread-safe way is easy.

Updated March 16, 2020

by Thomas Krieger

· 24,308 Views · 17 Likes

Comparing Apache Ignite In-Memory Cache Performance With Hazelcast In-Memory Cache and Java Native Hashmap

This article compares different options for the in-memory maps and their performances in order for an application to move away from traditional RDBMS.

March 16, 2020

by Krishna Munagala

· 7,445 Views · 4 Likes

Spring Boot - Microservice- JaxRS Jersey - HATEOAS - JerseyTest - Integration

In this article, we discuss how to write a Spring Boot microservice based on Spring Jax-Rs Jersey, HATEOAS API, and JerseyTest framework integration.

March 13, 2020

by Bogdan Oleinikov

· 12,258 Views · 4 Likes

Java vs. Go Microservices - Load Testing (Rematch)

In this article, we look at benchmarks for two versions of a basic application with Go and Java to see which has the smaller CPU/memory footprint.

March 12, 2020

by Sergey Kirichenko

· 25,887 Views · 16 Likes

Java Enterprise Annotations Part 1

In this article, we discuss popular Java annotations to sure up your understanding of this common pattern within enterprise applications.

March 12, 2020

by Dmitry Egorov

CORE

· 13,334 Views · 11 Likes

How Reactive Threads Works (Part 1)

In this article, let's see what reactive programming is and also see how Reactive threads work.

March 11, 2020

by Milind Deobhankar

· 7,566 Views · 4 Likes

Java Testing Complete Guide

In this article, we discuss nine of the most common types of application testing and review code samples and tools for each in Java.

Updated March 11, 2020

by Dmitry Egorov

CORE

· 58,312 Views · 38 Likes

How to Migrate From JUnit 4 to JUnit 5 Step by Step

In this tutorial, we take a look at how you can create and migrate a basic Spring Boot application from JUnit 4 to the refreshed JUnit 5.

March 11, 2020

by Awkash Agrawal

· 48,420 Views · 4 Likes

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