Language Resources

A Functional Approach to Given When Then Using Java 8

A couple of months ago, while working on a new project, I started to look for an easy way to have this Given-When-Then separation in my tests.

Updated December 29, 2016

by Gabriel Deliu

· 30,939 Views · 19 Likes

On Databases, Temporal Data Types, and Trains

Temporal data types—those dealing with time—can be troublesome if not handled correctly. See how they've developed and how to implement them properly.

December 29, 2016

by Anders Karlsson

· 10,856 Views · 4 Likes

Getting Started With vCheck

If you use a vSphere infrastructure, then vCheck can help. The vCheck framework is designed to run checks against your infrastructure to determine operational issues.

December 29, 2016

by Rob Nelson

· 10,473 Views · 3 Likes

Using Apache POI to Convert Excel to an Elasticsearch Compatible JSON

Let's see what happens when you upload data into an Elasticsearch index and learn why Logstash was not the answer.

December 29, 2016

by Bipin Patwardhan

· 8,073 Views · 1 Like

Single vs. Multiple Filters in the Java Stream API

It might be tempting to run multiple filters in your streams, but be careful—it might come with a cost. Use your filters judiciously.

December 29, 2016

by A N M Bazlur Rahman

CORE

· 114,452 Views · 6 Likes

Persisting ZipKin SpanStore: MySQL and Cassandra

The ZipKin distributed tracing system is great for testing latency issues, but by default, it doesn't persist the traces. Fortunately, you can fix that with Cassandra and MySQL.

December 28, 2016

by Nitin Ware

· 13,990 Views · 2 Likes

Working With Oracle JET UI Web Components

Learn the basics for working with Oracle JET UI web components with help from the JET Cookbook.

December 28, 2016

by Chris Muir

· 26,247 Views · 9 Likes

Send, read Emails and Appointments From MS Exchange [using Java]

This code will help you connect your app to MS Exchange using the EWS Java API. In its current form, the snippet fetches emails and appointments and can be broadened.

December 27, 2016

by Shantanu Sikdar

· 66,023 Views · 6 Likes

Performance Ingredients for NoSQL: Intersect Scans in N1QL

Query processing is one of the most complex and complicated areas in the database realm. Intersect scans leverage multiple indexes for a query and bring subtle performance characteristics.

December 26, 2016

by Prasad Varakur

· 6,394 Views · 4 Likes

Variables in DataWeave

It is possible to define variables in DataWeave header, DataWeave body, and flow variables before the DataWeave component in a Mule flow in DataWeave code.

December 26, 2016

by Swati Deshpande

· 41,728 Views · 5 Likes

How to Resolve the ''ActiveMQConnectionFactory Class Not Found'' Exception

This error means that your Mule application is looking for activemq supporting classes in your project and it is not finding any.

December 26, 2016

by Akkiraju Ivaturi

· 24,750 Views · 3 Likes

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

· 61,451 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

· 18,789 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

· 24,078 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

· 195,239 Views · 44 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

· 81,750 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

· 13,811 Views · 19 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

· 21,937 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

· 39,669 Views · 8 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

· 9,618 Views · 5 Likes

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