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 ....



Jenkins setups for Kubernetes and Docker Workflow


Intro During the summer I had the chance to play a little bit with Jenkins inside Kubernetes. More specifically I wanted to see what’s the best way to get the Docker Workflow Plugin running. So, the idea was to have a Pod running Jenkins and use it to run builds that are defined using Docker Workflow Plugin.  After a lot of ...

Read More »

HTTP/2 – Powered by SPDY (speedy) and inspired by evolutionary web


While driving back home, I was listening to Mark Nottingham’s (who chairs IETF HTTP working group) podcast on HTTP/2 and it was very interesting to know about the upcoming changes in HTTP protocol. Post that I did some research and sharing some interesting findings with respect to HTTP/2. It’s been a long time the backbone of Internet, HTTP has not ...

Read More »

Yet Another Report Generator?


If you have experience of business application development, then most likely you will have encountered a requirement for the application to have a flexible reporting mechanism. The company I work for is mainly focused on developing business solutions and reporting is an essential, indeed, must have aspect of all the enterprise systems we develop. To enable flexible reporting in our ...

Read More »

Java EE 8 MVC: Getting started with Ozark


About a year ago a new action based MVC framework, simply called MVC, was announced for Java EE 8. MVC (specified in JSR 371) is based on JAX-RS and integrates with Java EE technologies like CDI and Bean Validation. The reference implementation for MVC 1.0 is Ozark. This is the first article of a multi-part tutorial I am planning to ...

Read More »

An Unexpected Allocation – JIT Compilation Jitter


Whilst working on ByteWatcher (see my last post) I came across something rather strange. This is the actual code snippet used to find out how much allocation there has been on a particular thread: return (long) mBeanServer.invoke( name, GET_THREAD_ALLOCATED_BYTES, PARAMS, SIGNATURE ); For the full context see here. (The way ByteWatcher works is to call this method periodically to monitor allocation.) One ...

Read More »

Squeezing data into the data structure


This story is about a capacity optimization task that we recently carried out at Plumbr. It all started with an innocent-looking requirement being added to the existing mix. As you might know, Plumbr monitoring solution is distributed as a Java Agent which connects to a Server. The small addition required to keep track of all the connected Agents over time so ...

Read More »

Dependency injection: syntax sugar over function composition


Quoting Dependency Injection Demystified: “Dependency Injection” is a 25-dollar term for a 5-cent concept. *James Shore, 22 Mar, 2006 Dependency injection, as much as it is important when writing testable, composable and well-structured applications, means nothing more than having objects with constructors. In this article I want to show you how dependency injection is basically just a syntax sugar that ...

Read More »

Spark Backend for Apache Gora


I’ve worked for Spark backend of Apache Gora as my GSoC 2015 project and finished it. At this blog post, I’ll explain how it works and how to use it. First of all, I suggest you to read my previous posts about my GSoC 2015 acceptance: and Apache Gora: if you haven’t read them. Apache Gora provides an in-memory data model and persistence ...

Read More »

Continuous Delivery of Fusion Middleware applications with FlexDeploy


Any IT organization sooner or later has to deal with such thing as Continuous Delivery (CD). They realize that there are various environments such as development, QA, support, UAT, production, etc. and there are a number of different systems working in those environments. At some point managing all that stuff manually becomes just impossible and should be automated. There is ...

Read More »
Want to take your Java Skills to the next level?
Grab our programming books for FREE!
  • Save time by leveraging our field-tested solutions to common problems.
  • The books cover a wide range of topics, from JPA and JUnit, to JMeter and Android.
  • Each book comes as a standalone guide (with source code provided), so that you use it as reference.
Last Step ...

Where should we send the free eBooks?

Good Work!
To download the books, please verify your email address by following the instructions found on the email we just sent you.