Do you want to know how to develop your skillset to become a Java Rockstar?

Subscribe to our newsletter to start Rocking right now!

To get you started we give you our best selling eBooks for FREE!


1. JPA Mini Book

2. JVM Troubleshooting Guide

3. JUnit Tutorial for Unit Testing

4. Java Annotations Tutorial

5. Java Interview Questions


and many more ....



Streaming Big Data: Storm, Spark and Samza

There are a number of distributed computation systems that can process Big Data in real time or near-real time. This article will start with a short description of three Apache frameworks, and attempt to provide a quick, high-level overview of some of their similarities and differences. Apache Storm In Storm, you design a graph of real-time computation called a topology, and feed it to the ...

Read More »

JBoss Forge NetBeans integration – Getting Started

JBoss Forge is the Fastest way to build Maven-Based Java EE projects. And as such it already has awesome features to make your life as a developer even easier. For the most part, people looking at Forge are likely interested in creating web-applications. There are plenty of ways to get started with the Forge basics. You can look at the ...

Read More »

XML Manipulation With XML Copy Editor

The XML document format, created in 1996, is still widely used to facilitate communication between disparate systems (though for certain implementations is somewhat being replaced by JSON). As a Java developer, I generally interface with data in an XML document via a DOM parser, but there are occasions where being able to manipulate an XML document directly is advantageous or ...

Read More »

Playing with Weld-Probe – See All of your CDI Aspects in One Place


Weld 3.0.0.Alpha4 was released, while I’ve been sitting in a conference room at DevConf.CZ. More or less next to Jozef Hartinger ( @jozefhartinger) who told me about the new awesome features of this latest release a few minutes before in a shared break. There is one particular feature, that really caught my attention which is the new Weld Probe mechanism.     What ...

Read More »

Five easy steps to improve your database performance

January 30, 2015: Based on reader feedback, section 4 “Do you have enough database connections?” has been revised. Database access is a core feature of most applications. Based on our experience, it seems that for at least 80% of all applications we see, simple database performance tuning can speed up applications significantly. Fortunately, there isn’t a lot of rocket science ...

Read More »

Refactoring to Allow Test Doubles

Sometimes, when you make a class, it directly instantiates an object to use in its methods. For example:                   public void myFunc() { MyType object = new MyType(); object.doSomething(); this.thingy = object.getSomething(); } This is generally viewed as bad, since you’re tightly coupling your class to the instantiated one. “But,” you say, ...

Read More »

Hibernate locking patterns – How does PESSIMISTIC_FORCE_INCREMENT Lock Mode work

Introduction In my previous post, I introduced the OPTIMISTIC_FORCE_INCREMENT Lock Mode and we applied it for propagating a child entity version change to a locked parent entity. In this post, I am going to reveal the PESSIMISTIC_FORCE_INCREMENT Lock Mode and compare it with its optimistic counterpart. More alike than different As we already found out, the OPTIMISTIC_FORCE_INCREMENT Lock Mode can ...

Read More »

OpenShift v3: Getting Started with Java EE 7 using WildFly and MySQL

OpenShift is Red Hat’s open source PaaS platform. OpenShift v3 (due to be released this year) will provide a holistic experience on running your microservices using Docker and Kubernetes. In a classic Red Hat way, all the work is done in the open source at OpenShift Origin. This will also drive the next major release of OpenShift Online and OpenShift ...

Read More »

Java development tools for a programming boost !

Java developers usually try to find ways to write quality Java code, quick and efficient, to make their programming life easier. Since things change, more and more tools come up. So, below there is a list of useful tools that most developers have used, use or will surely use in the future. The list includes integrated development environments, integration tools, ...

Read More »

Want to take your Java skills to the next level?

Grab our programming books for FREE!

Here are some of the eBooks you will get:

  • Spring Interview QnA
  • Multithreading & Concurrency QnA
  • JPA Minibook
  • JVM Troubleshooting Guide
  • Advanced Java
  • Java Interview QnA
  • Java Design Patterns