Coding Resources

Configuring Memory for MapReduce Running on YARN

There are times when a MapReduce job exceeds its memory limits. This article presents an overview of how YARN monitors the memory for containers and provides the technique to fix this issue.

December 23, 2016

by Alex Holmes

· 62,832 Views · 2 Likes

Is Standard Java Logging Dead?

Does JUL still have a place in the ecosystem? See how a variety of third-party logging tools stack up against Java's built-in logging power.

December 23, 2016

by Alex Zhitnitsky

· 19,579 Views · 10 Likes

JDK 9: An Introduction to StackWalker

StackWalker is an API for stack walking that allows easy filtering of, and lazy access to, the information in stack traces.

December 22, 2016

by Hemambara Vamsi Kotari

· 24,688 Views · 24 Likes

We Don't Need StringBuilder for Simple Concatenation

Concatenating strings is useful, but expensive. Fortunately, you don't need to use StringBuilder anymore - the compiler can handle it for you.

December 22, 2016

by A N M Bazlur Rahman

CORE

· 197,394 Views · 44 Likes

Spring Sweets: Add Git Info to Info Endpoint

A simple change to the Gradle configuration can enhance your Spring Boot information endpoint with extra Git information.

December 22, 2016

by Hubert Klein Ikkink

· 11,665 Views · 1 Like

Moving Cron Jobs to Jenkins

There are both advantages and disadvantages that come with moving some of your cron jobs to Jenkins.

December 22, 2016

by Thomas Kurian Theakanath

· 28,491 Views · 4 Likes

What Is Node.js for Java Developers?

Node.js is growing in popularity, but how exactly does it work? This guide breaks down the terminology into Java-friendly terms for easy understanding.

December 22, 2016

by Ratha KM

· 82,953 Views · 57 Likes

Being Wary Does Not Hurt Java

Being careful is not the same as being hurtful to the larger community. With Oracle's licensing audits still fresh in mind, it's important to stay alert.

December 21, 2016

by Markus Eisele

· 14,289 Views · 19 Likes

Spring XML-Based DI and Builder Pattern

This quick tutorial covers creating Spring beans for classes created with the Builder pattern using XML.

December 21, 2016

by Shaamik Mitraa

· 26,413 Views · 6 Likes

Apache NiFi 1.x Cheatsheet

This quick and easy guide will show you how to make Apache NiFi work for you, including processors, connections, and APIs.

December 20, 2016

by Tim Spann

CORE

· 22,968 Views · 8 Likes

A Look at ScheduledService [Code Snippets]

ScheduledService lets you execute the same task a regular intervals and can even restart itself in the event of a failure, making it a good tool to have in the box.

December 20, 2016

by Arun Pandey

CORE

· 40,165 Views · 8 Likes

Dockerfile Tips and Tricks

If you're looking to get started with Docker, these tips will keep your Dockerfile up to snuff. Pin your dependencies, consider the order of your statements, and clean up.

December 20, 2016

by Gergely Imreh

· 12,150 Views · 6 Likes

Spring Boot and Application Context Hierarchy

Creating your own application context hierarchy can allow you, should you need to, provide different ports with different endpoints to give you some customization.

December 20, 2016

by Biju Kunjummen

· 86,028 Views · 11 Likes

Razor Engine for Parsing Razor Pages Stored as String

How the MVC Razor engine can be used to parse the razor view when the view is stored as text in a database or somewhere else outside an application.

December 19, 2016

by Anjani Singh

· 19,617 Views · 1 Like

Making Spring Boot Applications Run Serverless With AWS

Forget the cloud, it's time to go serverless. Using AWS Lambda and API Gateway can reduce costs and overhead, and it's easy to get your Spring Boot app running on it.

December 18, 2016

by $$anonymous$$

· 40,179 Views · 14 Likes

How to Convert Maven to Gradle and Vice Versa

Converting Maven to Gradle only takes one step, and converting Gradle back to Maven isn't much more difficult.

December 18, 2016

by A N M Bazlur Rahman

CORE

· 214,682 Views · 18 Likes

Plant UML Pleasantness: Change Line Style and Color

PlantUML is a great Java design tool for working on your classes using standard UML. It's an open-source tool that allows for great customization.

December 17, 2016

by Hubert Klein Ikkink

· 11,505 Views · 5 Likes

Investigating KnockoutJS in Oracle JET

An introduction to the best use cases for KnockoutJS, how it's differentiated from other JavaScript frameworks, and how it's used in Oracle JET.

December 16, 2016

by Chris Muir

· 16,082 Views · 8 Likes

Testing Spring MVC With Spring Boot 1.4: Part I

If you’re looking to load your full app configuration and use MockMVC, you should consider @SpringBootTest combined with @AutoConfigureMockMvc rather than @WebMvcTest.

December 16, 2016

by John Thompson

· 35,730 Views · 8 Likes

Gradle Goodness: Passing Environment Variables in IntelliJ IDEA

Want Gradle to run your IntelliJ IDEA tasks? Now you can! IntelliJ supports using Gradle to run tasks, and you can customize them to suit your needs.

December 16, 2016

by Hubert Klein Ikkink

· 39,713 Views · 2 Likes

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