Java Resources

This introduction to Reactive programming discusses the observable and oberserver model, as well as the operators and an example.

April 8, 2020

by Tiago Albuquerque

· 27,224 Views · 15 Likes

Complete Guide To Access Forms In Selenium With Java

This article will help you understand how you can access forms in Selenium to automate browser testing of your web application.

Updated April 8, 2020

by Aditya Dwivedi

· 13,767 Views · 4 Likes

Kafka Stream (KStream) vs Apache Flink

In this article, we take a look at two of the most popular stream processing frameworks, Flink and Kafka's Stream API, to see which is right for you.

April 7, 2020

by Preetdeep Kumar

· 32,499 Views · 12 Likes

Frequently Used Annotations in Spring Boot Applications

Take a look at this cheatsheet of some of the most frequently used annotations in Spring applications, including Core Spring, tests, and security.

April 7, 2020

by Yevgen Pikus

· 32,915 Views · 10 Likes

NGINX With Eureka Instead of Spring Cloud Gateway or Zuul

In this article, we discuss how to use NGINX and Eureka instead of Spring Cloud Gateway or Zuul for your microservices.

April 6, 2020

by Triphon Penakov

· 36,886 Views · 8 Likes

JDK 11 HTTP Client API - Handling Request/Response Body Types

In this article, we discuss how to deal with requests and response body types in an HTTP client API in Java.

Updated April 6, 2020

by Anghel Leonard

CORE

· 34,251 Views · 9 Likes

Alexa Proactive Notification Java Client Sender

In this article, we discuss how to use a Java client to easily send notifications from an Alexa Skill to your users.

April 2, 2020

by Xavier Portilla Edo

CORE

· 7,619 Views · 4 Likes

Apache Flink With Kafka - Consumer and Producer

See an example of how to share an example of consuming records from Kafka through FlinkKafkaConsumer and records to Kafka using FlinkKafkaProducer.

April 2, 2020

by Preetdeep Kumar

· 25,967 Views · 6 Likes

Microservice: Async Rest Client to DynamoDB using Spring Boot

In this post, I will be exploring using asynchronous DynamoDB API and Spring Webflux by building a simple reactive REST application.

April 2, 2020

by Yegor Bondarenko

· 13,739 Views · 6 Likes

Hexagonal Architecture in Java

In this article we discuss the benefits of hexagonal architecture and how to implement it with a simple example in Java.

April 1, 2020

by Ravi Sharma

· 21,831 Views · 19 Likes

Distributed and Guaranteed Executor Service

An overview.

Updated April 1, 2020

by Arun Lingala

· 8,866 Views · 6 Likes

How to Publish Docker Images on Private Nexus Repository Using Jib Maven Plugin

In this article, see how to publish Docker images on a private Nexus repository using Jib Maven plugin.

March 31, 2020

by Awkash Agrawal

· 10,313 Views · 3 Likes

Clean Unit Testing

In this article, I outline several tips that aim to improve the readability, maintainability and the quality of your unit tests.

Updated March 30, 2020

by Alex Staveley

· 15,605 Views · 15 Likes

How to Empty Cache memoryIdempotentRepository in Apache Camel (DSL Java)

In this article, we provide a brief tutorial on how to clear the cache memoryIdempotentRepository in an Apache Camel application.

Updated March 27, 2020

by Anna Star

· 9,460 Views · 3 Likes

Deep Dive Into Apache Flink's TumblingWindow — Part 2

In this post, I am going to provide examples of overriding these TumblingWindow defaults and handling late values.

Updated March 27, 2020

by Preetdeep Kumar

· 15,338 Views · 7 Likes

Spring2quarkus — Spring Boot to Quarkus Migration

Find out how!

Updated March 25, 2020

by Triphon Penakov

· 30,831 Views · 12 Likes

Securing Web Apps Using PKCE With Spring Boot

Dive into securing your web apps with OAuth 2.0 and OpenID Connect using PKCE, Okta, and Spring Boot.

March 25, 2020

by Micah Silverman

· 19,601 Views · 5 Likes

7 JVM Arguments of Highly Effective Applications

In this article, we discuss how to use 7 JVM arguments to help increase your application's performance and avoid common memory pitfalls.

March 25, 2020

by Ram Lakshmanan

CORE

· 53,411 Views · 43 Likes

How to Unit Test Classes Which Create New Objects

A simple method to write test cases for classes that use new keywords in their method with the help of Mockito and minimum code changes.

Updated March 25, 2020

by Shivam Mohan

· 116,871 Views · 4 Likes

Deep Dive Into Apache Flink's TumblingWindow — Part 3

In this article, see how to use allowedLateness to handle late elements that arrive after a watermark is generated for the current window and more.

March 24, 2020

by Preetdeep Kumar

· 13,942 Views · 3 Likes

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