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 ....

 

JBoss Fuse 6.2 released – guide how to quickly try it

apache-camel-logo

At the Red Hat summit last week, it was announced that JBoss Fuse 6.2 was released. I want to congratulate the fuse team for getting this release out. I know that they have been working very hard all this year to QA and ensure its passes the high barrier of quality expected from an enterprise product. So with my Camel ...

Read More »

How does FlexyPool support the Dropwizard Metrics package renaming

java-interview-questions-answers

Introduction FlexyPool relies heavily on Dropwizard (previously Codahale) Metrics for monitoring the connection pool usage. Being integrated into Dropwizard, the package name was bound to be renamed. So instead of com.codahale.metrics the 4.0.0 release will use the io.dropwizard.metrics package name. The challenge Apart from the obvious backward incompatibility, the most challenging aspect of this change is that the Maven dependency ...

Read More »

The Effect of Co-ordinated Omission – Measure loopback latency using a simple NIO client/server

java-interview-questions-answers

In this post I demonstrate a number of ideas and techniques:  How to write a simple non-blocking NIO client/server The effects of co-ordinated omission How to measure latencies in percentiles (as opposed to simple average) How to time latency loopback on your machine I was recently developing a low latency benchmark for client server application.  Initially I was simulating the ...

Read More »

Good Programmers Write Bug-Free Code, Don’t They?

software-development-2-logo

Good programmers create fewer bugs while bad programmers cause more. Sounds logical, doesn’t it? However, there is a lot of criticism of this way of thinking. Take this one, for example: Bugs are inevitable, and instead of expecting fewer bugs from us, let us focus on the right design and let testers find and report bugs; then we’ll fix them. ...

Read More »

Scaling To Infinity with Docker Swarm, Docker Compose and Consul (Part 3/4) – Blue-Green Deployment, Automation and Self-Healing Procedure

docker-logo

This series is split into following articles. A Taste of What Is To Come Manually Deploying Services Blue-Green Deployment, Automation and Self-Healing Procedure Scaling Individual Services In the previous article we manually deployed the first version of our service together with a separate instance of the Mongo DB container. Both are (probably) running on different servers. Docker Swarm decided where ...

Read More »

MySQL vs. MongoDB: Choosing a Data Management Solution

software-development-2-logo

Table Of Contents 1. Introduction 2. The dominance of RDBM systems 3. A new era of NoSQL movement 4. Tables vs Documents vs Graphs vs Key/Values 5. MySQL and MongoDB: Conscious Decision 5.1. Enforced Schema vs Schemaless 5.2. Normalization vs Duplication 5.3. Relations vs References 5.4. Transactions vs Atomic Updates 5.5. SQL vs JSON 5.6. Stored Procedures vs Scripting 5.7. ...

Read More »

A Few Valid Reasons to Reject a Bug Fix

software-development-2-logo

A bug exists when something doesn’t work as expected. A bug fix is basically a patch (a pull request) to the existing code base that is supposed to solve the problem and make sure that “something” works as expected. Very often, such a patch fixes one thing and breaks many others. I believe that sometimes it’s necessary to reject a ...

Read More »

Scaling To Infinity with Docker Swarm, Docker Compose and Consul (Part 2/4) – Manually Deploying Services

docker-logo

This series is split into following articles. A Taste of What Is To Come Manually Deploying Services Blue-Green Deployment, Automation and Self-Healing Procedure Scaling Individual Services The previous article showed how scaling across the server farm looks like. We’ll continue where we left and explore details behind the presented implementation. Orchestration has been done through Ansible. Besides details behind tasks ...

Read More »

Scaling To Infinity with Docker Swarm, Docker Compose and Consul (Part 1/4) – A Taste of What Is To Come

docker-logo

This series is split into following articles. A Taste of What Is To Come Manually Deploying Services Blue-Green Deployment, Automation and Self-Healing Procedure Scaling Individual Services Previous articles put a lot a focus on Continuous Delivery and Containers with Docker. In Continuous Integration, Delivery or Deployment with Jenkins, Docker and Ansible I explained how to continuously build, test and deploy ...

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.