Java Resources

If you like XML's handy hierarchical style and the familiarity of Java, you're in luck: You can quickly parse your XML data and put it into a MySQL database with ease.

February 21, 2017

by Jay Sridhar

· 54,006 Views · 11 Likes

Java 8 Lambda Limitations: Closures

Java doesn't rely on closures the way functional programming languages and JavaScript do, but they're a loose thread in the implementation of lambda expressions.

February 20, 2017

by Miro Mannino

· 89,468 Views · 32 Likes

A Disk-Based Collection in Java

Feeling constrained by your heap? Want to store more elements in a collection than your memory can hold? Check out this project designed to handle big collections.

February 17, 2017

by Reinout Korbee

· 23,370 Views · 6 Likes

From Microservices to Distributed Systems: A Survival Guide for Java Devs

Moving to a microservices architecture is not just a matter of replacing method calls with HTTP requests. Welcome to the world of containers, reactive stacks, and more.

February 17, 2017

by Markus Eisele

· 56,060 Views · 26 Likes

Introducing Random Generator to Maven Central

With the project grunt work done, it's time to put our Random Generator onto Maven Central for everyone to use, including a simple example of the library in action.

February 16, 2017

by John Vester

CORE

· 78,732 Views · 3 Likes

Hibernate Caching With Hazelcast: Basic Configuration

In this post, we take a look at how to use Hazelcast as a second-level cache for Hibernate to lower the overhead of repeat database queries.

February 15, 2017

by Emmanouil Gkatziouras

CORE

· 13,892 Views · 9 Likes

Event-Driven Microservices Using Spring Cloud Stream and RabbitMQ

Propagating one trace and span ID between all calls of a single order isn't that difficult when you have the right knowledge and toolset.

February 15, 2017

by Piotr Mińkowski

· 33,623 Views · 12 Likes

A Java 8 Streams Cookbook

If you're looking for a quick breakdown of Streams, look no further. This cookbook covers Streams' chief advantages, its operations, and a comprehensive example.

February 13, 2017

by Martin Farrell

· 51,722 Views · 100 Likes

Guide for Camel Blueprint JUnit Testing

If you want to develop a JUnit test class for a blueprint XML, this guide provides everything that you need to know — from overriding properties to using shared services.

February 13, 2017

by Shreelalita S

· 15,380 Views

Load Testing MQTT Servers With Java, Maven, and Gatling

As MQTT protocol has been becoming more and more popular, it's becoming increasingly important to load test IoT devices.

February 13, 2017

by Volodymyr Babak

· 11,309 Views · 7 Likes

Proposal for a Java Policy Files Crafting Process

Configuring Java security policies is an important but extremely time-consuming task. See, how much work it takes for a small project like Spring Pet Clinic.

February 10, 2017

by Nicolas Fränkel

CORE

· 5,228 Views · 5 Likes

Memoizing Functions With Core Java 9

Java 9 will open a couple of new doors for memoizing functions. Starting with a base function, we'll work our way to NFunctions, memoizing along the way.

February 9, 2017

by Sven Ruppert

CORE

· 24,181 Views · 29 Likes

Fetching Oracle 12c Implicit Cursors With JDBC and jOOQ

Having covered SQL batches, let's move onto Oracle 12c's implicit cursors and how to fetch them using jOOQ/Java while not having to worry about low-level details.

February 9, 2017

by Lukas Eder

· 5,656 Views · 1 Like

GoF Design Patterns Using Java (Part 2)

Continue your understanding of design patterns by implementing the Adapter, Facade, Template, Iterator, and State patterns using Java.

February 8, 2017

by Sumith Puri

· 29,335 Views · 20 Likes

Size Does Matter (in JavaFX)

Configuring your charts is serious business, so here are a few JavaFX commands to keep in mind when working on visualizing your data.

February 8, 2017

by Dan Newton

· 44,180 Views · 6 Likes

Functional Programming in Java 8 (Part 2): Optionals

Use Optionals when there is a clear need to represent ‘no result’ or where null is likely to cause errors. Otherwise, stick to nulls.

February 8, 2017

by Niklas Wuensche

· 33,028 Views · 66 Likes

How Lambdas And Anonymous Inner Classes Work

Anonymous Inner Classes and lambdas have some similarities, but their differences are important to know if you're going to use them in your work.

February 8, 2017

by Martin Farrell

· 55,338 Views · 31 Likes

Mocking the Unmockable: The Mockito2 Way

Mockito2 has made improvements over its predecessor, including the ability to mock final classes. Its new opt-in feature lets you take mockery to a new level.

February 3, 2017

by Saral Khare

· 21,974 Views · 1 Like

Java EE Guardians Survey Results: HTTP 2/Servlet 4

Exactly how important is HTTP 2 support (and by extension, Servlet 4 support to make it happen) for Java EE? Our survey says devs think it's pretty important.

February 3, 2017

by Reza Rahman

CORE

· 10,130 Views · 7 Likes

JavaFX Charts Look Pretty Good!

With some tweaking, you can get JavaFX to compile nice-looking charts with a few animations baked in. Configuring them takes a bit of work, but it's worth it.

Updated February 1, 2017

by Dan Newton

· 32,436 Views · 16 Likes

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