Java Resources

Java's Scanner class, and the occasional bit of RegEx, makes parsing text trivial. You can put this to good use in a number of ways, which we'll dive into here.

February 22, 2017

by Jay Sridhar

· 51,454 Views · 8 Likes

Multi-Tenancy Using JPA, Spring, and Hibernate (Part 2)

If you want to support multi-tenancy with Spring in your stack, you should know how Spring actually knows the tenants, then dive right in.

February 21, 2017

by Jose Manuel García Maestre

· 31,944 Views · 9 Likes

JWT Authentication with Play Framework

In this post, we'll go over using JWT Authentication with the Play Framework for front-end web development to help make your site more secure.

February 21, 2017

by Teena Vashist

· 18,087 Views · 7 Likes

Load XML Into MySQL Using Java

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

· 54,104 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

· 89,646 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

· 23,444 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

· 56,169 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

· 78,782 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

· 13,930 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

· 33,762 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

· 51,812 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

· 15,445 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

· 11,349 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

· 5,244 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

· 24,269 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

· 5,696 Views · 1 Like