Java Resources

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

· 14,018 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

· 33,919 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

· 51,984 Views · 101 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

· 15,574 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

· 11,445 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

· 5,281 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

· 24,419 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

· 5,774 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

· 29,560 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

· 44,231 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

· 33,314 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

· 55,544 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

· 22,393 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

· 10,254 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

· 32,707 Views · 16 Likes

Spring Data Support for Cassandra 3

Using Spring Data with Cassandra 3 extends Spring's power into more NoSQL. This detailed tutorial includes setting up Apache Cassandra and some basic interactions.

February 1, 2017

by Biju Kunjummen

· 12,883 Views · 4 Likes

Automatic Type Binding in Java

Using the PropertyEditor interface, and its various support classes and methods, you can set up automatic type binding for your work.

January 31, 2017

by Shamik Mitra

· 11,638 Views · 5 Likes

Java Garbage Collector and Reference Objects

We take a look at garbage collector concepts in Java and that various reference object types that can be handled by it, demystifying the Java GC!

January 30, 2017

by Bengi Egima

· 56,949 Views · 61 Likes

Using SonarQube (and SonarGraph) to Detect Cyclic Dependencies

SonarQube (and the SonarGraph plugin) can automatically scan your code base for cyclic dependencies. Their combined power replaces some lost functionality.

January 28, 2017

by Alexander Von Zitzewitz

· 23,909 Views · 5 Likes

Functional Programming in Java 8 (Part 1): Functions as Objects

If functional programming has your attention, let's start with the basics: functions. You can store functions as objects, take them as arguments, return them, and more.

January 26, 2017

by Niklas Wuensche

· 83,844 Views · 47 Likes

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