2016-12-11 02:18
The world around us is changing rapidly. And as programmers, we need to stay up to date with the most recent developments. Two of the most important trends that you need to be on top are Mac… Read More
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2016-12-10 13:00
Thymeleaf was designed around the concept of Natural Templates that allows static prototyping: template logic doesn’t affect the template from being used as prototype. Although this is… Read More
2016-12-09 20:00
More than anything else, modern development’s primary focus is often based around three central concepts: efficiency reliability repeatability But how do you achieve these three object… Read More
2016-12-09 17:00
On a regular basis we hear people talk of good and bad architecture, but what is architecture? Before I describe software architecture, let’s see if we can come to an agree… Read More
2016-12-08 05:00
During the second week of November was Devoxx Belgium, Europe’s biggest Java conference, and as every year the community’s who’s-who showed up. One of them was Brian Goetz… Read More
2016-12-06 11:00
Android fingerprint authentication uses smartphone touch sensor to authenticate the user. Android Marshmallow has introduced a set of API that makes easy to use touch sensor. Before Android… Read More
2016-12-06 08:00
Some weeks ago I read a tweet which contained this picture and someone said:”That’s the reason why Value Types are helpful!”. After that I remembered situations happened so… Read More
2016-12-06 05:00
As product managers and product owners, we make a myriad of decisions—from shaping the product strategy and determining the product roadmap to deciding the detailed functionality of ou… Read More
2016-12-06 05:00
In several previous posts I described how to setup your Spring Boot application and run it on AWS Elastic Beanstalk. Although this is a great step to go from a physical server to one in the… Read More
2016-12-05 20:00
Tools for Deep Learning development To start playing with Deep Learning one have to pick a proper tool for it. Python ecosystem tools for Deep Learning such as Keras, Theano and TensorFlow a… Read More
2016-12-05 17:00
Kubernetes provides detailed insights about resource usage in the cluster. This is enabled by using Heapster, cAdvisor, InfluxDB and Grafana. Heapster is installed as a cluste… Read More
2016-12-05 14:00
Introduction In this post I am going through a full (Java) example of integrating AWS Lambda, DynamoDb and Api Gateway to create a function and expose this function as a HTTP resource for ot… Read More
2016-12-05 11:00
Equals and hash code are fundamental elements of every Java object. Their correctness and performance are crucial for your applications. However often we see how even experienced programmers… Read More
2016-12-05 08:00
Having worked in the software development industry for nearly a decade, I wanted to take a step back and look back on the journey so far. When I initially began my career, for me, it was abo… Read More
2016-12-05 07:34
Building Identity Management, including authentication and authorization? Try Stormpath! Our REST API and robust Java SDK support can eliminate your security risk and can be implemented in m… Read More
2016-12-05 07:28
Meet the most useful application monitoring tools for Java developers Monitoring our application is an essential function in production environments today. Errors and performance issues pop… Read More
2016-12-05 07:23
This High-Intensity 14.5 Hour Bundle Will Help You Help Computers Address Some of Humanity’s Biggest Problems Hey fellow geeks, This week, on our JCG Deals store, we have an extreme of… Read More
2016-12-05 05:00
A couple of weeks ago I wrote a post explaining how to create a Neo4j causal cluster using Kubernetes and … the I wanted to work out how to simulate a network partition which would pu… Read More
2016-12-01 14:00
Struggling with your heavy-weight editor? Then we have something especially for you! We are running a contest giving away a FREE license for the kick-ass Sublime Text Editor. Sublime Text is… Read More
2016-12-01 11:00
Since version 3.1, the Spring framework offers an abstraction towards several different sources through which you can easily configure your application: the Environment. In this post I descr… Read More
2016-12-01 08:00
One of the neat features that the excellent Spring Kafka project provides, apart from a easier to use abstraction over raw Kafka Producer and Consumer, is a way to use Kafka in tes… Read More
2016-12-01 05:00
If you’re thinking about agile or trying to use it, you probably started with iterations in some form. You tried (and might be still trying) to estimate what you can fit into an iterat… Read More
2016-11-30 20:00
Introduction In a typical monolithic layered architecture, a presentation or a controller layer communicates with the service layer through a function call. The request URL has a fixed endpo… Read More
2016-11-30 11:00
It’s been a while since we talked about testing and applying effective TDD practices, particularly related to REST(ful) web services and APIs. But this topic should have never been for… Read More
2016-11-30 08:00
In this blog post, I explore the six different dimensions I covered in my recent talk at the O’Reilly Software Architecture conference in London called “The Well Rounded Architec… Read More
2016-11-30 05:00
According to Gartner, by 2020, a quarter of a billion connected cars will form a major element of the Internet of Things. Connected vehicles are projected to generate 25GB of data per hour… Read More
2016-11-29 16:24
Solve App Problems 10x Faster with AppDynamics – Monitor production apps at code-level depth with minimal overhead. Start a FREE Trial! As we head into the Thanksgiving weekend with th… Read More
2016-11-28 17:00
Spark Overview As per the official website, “Apache Spark is a fast and general engine for large scale data processing” It is best used with clustered environment where the data… Read More
2016-11-28 14:00
My last – frustrated – post finished with this line: “banks are collecting technical debt the way they used to collect sub-prime” I’ve always disliked the tech… Read More
2016-11-28 11:00
A couple of weeks ago I wrote a blog post explaining how I’d created a Neo4j causal cluster using docker containers directly and for my next pet project I wanted to use Kubernetes as a… Read More
2016-11-28 05:00
Hidden potential The interest in Deep Learning research and applications is as hot as it was never before. A countless number of new research papers can be found at arXiv.org almost eve… Read More
2016-11-25 14:00
A previous post tried to find objective correlations1, 2 between the number of times a method was updated and its structural properties. Given that the probability of a method’s being… Read More
2016-11-25 11:00
Because I work with Linux and Windows based machines for development, I often find myself wishing that I had some of the handy command-line Linux tools available in my Windows environments… Read More
2016-11-25 08:00
Agile is iterative and incremental development and frequent delivery with cultural change for transparency. What do the words iterative and incremental mean? Iterative means we take a o… Read More
2016-11-25 05:00
Apache Mesos is an open source cluster manager developed at UC Berkeley. It provides resource isolation and sharing across distributed applications. Mesos consists of a master daem… Read More
2016-11-24 08:00
We are getting closer to the first Release Candidate for JavaParser 3.0. One of the last features we added was support for observing changes to all nodes of the Abstract Syntax Tree. While I… Read More
2016-11-24 05:00
A command line tool to generate massive random Java applications The command line tool you’ve been waiting for. Or not. After all, it’s pretty esoteric. Either way, it’s pr… Read More
2016-11-23 20:00
Being an effective product owner or product manager requires leadership: the development team and stakeholders need guidance and direction to collaborate and achieve product success. But as… Read More
2016-11-22 05:00
Little known yet useful: The state of open source Application Performance Monitoring One of the most important things for any application is performance. We want to make sure the users are g… Read More
2016-11-21 14:00
Sometimes it’s necessary to connect different Message Brokers together. In Enterprise Messaging this scenario is known as Bridging. It can be done with JMS and different protocols like… Read More
2016-11-21 11:00
There is no denying it – we live in The Age of the Customer. Consumers all over the world are now digitally empowered, and they have the means to decide which businesses will succeed a… Read More
2016-11-21 08:11
A Price You Pick Gets You 156 Hours of Premium Coding Instruction, From Python to Ruby & Everything In Between Hey fellow geeks, This week, on our JCG Deals store, we have an extreme off… Read More
2016-11-21 08:00
As a consequence of the Dyn attack many major websites were down, including twitter – the browsers could not resolve an IP address of the servers because the authoritative name server… Read More
2016-11-21 05:00
1. Introduction Connection Pooling is a technique to boost application’s performance where N connections to the database are opened and managed in a pool. The application just ask… Read More
2016-11-18 17:00
In this week’s Whiteboard Walkthrough Jorge Geronimo, Solutions Architect at MapR, explains how with a single line of code you can create a replica of a MapR data stream within the sam… Read More
2016-11-17 20:00
Here’s an interesting problem our team faced last month that was extremely infuriating. We were in the process of launching replacement haproxyinstances that are used to load balance t… Read More
2016-11-17 17:00
This is my report on my trip to Devoxx Belgium conference. My last visit to Belgium coincided with the publication of Java EE 7 Developer Book in 2013. Three years ago is long time in the te… Read More
2016-11-16 08:00
If you visited JavaOne this year you might have attended my presentation on “How to Generate Customized Java 8 Code from your Database”. In that talk I showcased how the Speedmen… Read More
2016-11-16 05:00
Make Banana Recognition Great Again This post is about going from an idea to its implementation. The idea was to create an application for mobile phone that can detects cars. Now let’s… Read More
2016-11-15 20:00
Erik Dietrich is a well known Software Architect with a long experience in consulting. His blog (DaedTech) is a source of thoughtful insights on software development. In particular I was ver… Read More
2016-11-15 17:00
So we now have tested software, yippee! Which means nothing if we don’t get it to actual customers, so let’s talk about shipping to production. Like everything we discussed until… Read More
2016-11-15 11:00
I’m working on a project to automate our chicken coop (see my article Getting over myself and doing things the easy way for more details on the project). Right now, the lights open and… Read More
2016-11-15 08:00
My objective here is to show how Spring Kafka provides an abstraction to raw Kafka Producer and Consumer API’s that is easy to use and is familiar to someone with a Spring backgro… Read More
2016-11-15 05:00
I’ve been thinking a bit about open source software, and why I’m so attracted to it. Often when people talk about the thing that makes open source so great, they use the phrase … Read More
2016-11-14 20:00
I hear this argument a lot. As the author of a framework that strongly encourages CQRS, I obviously am biased against this opinion, and disgaree with it. Of course, the statement and my disa… Read More
2016-11-14 17:00
One of the most confusing things I approached when working with AWS was the Billing. There are tools which should help, but in the beginning they were just frightening. They looked somehow r… Read More
2016-11-14 14:00
Until recently, I had static methods setting up my in memory database (HSQLDB). I called these methods in setUp/tearDown of my JUnit tests. This felt always a bit unnatural to me as I use Sp… Read More
2016-11-14 11:00
These days, there are a lot of discussions about Microservices at the workplace or in tech talks. And if you have worked with SOA before, you might wonder what is the difference between SOA… Read More
2016-11-11 11:00
Parallel Database Streams In my previous post, I wrote about processing database content in parallel using parallel streams and Speedment. Parallel streams can, under many circumstances… Read More
2016-11-11 05:00
Annotations were introduced in Java 5, and we all got excited. Such a great instrument to make code shorter! No more Hibernate/Spring XML configuration files! Just annotations, right there i… Read More
2016-11-10 20:00
In this talk I will introduce three different clients for elasticsearch as well as Spring Data Elasticsearch. But to get started let’s look at some of the basics of elasticsearch. elas… Read More
2016-11-10 17:00
Debugging is “a process of running a program/method interactively, breaking execution flow after each statement and showing…” In a nutshell, it is a very useful technique… Read More
2016-11-10 14:00
What is IoT? This is a big question! Of course, IoT is the next technological revolution that promises to change the way we live and the way we work. So what is IoT? According to the most im… Read More
2016-11-10 05:00
In a beginner’s guide to concurrency, I mentioned advisory locks. These are not the usual table locks – they are table-agnostic, database-specific way to obtain a named lock from… Read More
2016-11-09 20:00
Continuous integration is so often preached from the pulpit of careful software craftsmanship that you might think it’s nothing more than KoolAidtm. However, continuous integration is… Read More
2016-11-09 17:00
In my line of work (recruiting, job search coaching, and resume writing) and through my comments on Reddit, I’m often asked by job seekers how they can get noticed by a favored employe… Read More
2016-11-08 14:00
In the Forwarding Logs From All Containers Running Anywhere Inside A Docker Swarm Cluster article, we managed to add centralized logging to our cluster. Logs from any container running insid… Read More
2016-11-08 12:24
Want to learn about the best practices in implementing DevOps toward your digital transformation? Download the free eBook Why DevOps is an Essential Part of Digital Transformation! Think of… Read More
2016-11-08 11:00
One of the more challenging aspects of software development can be dealing with floating-point numbers. David Goldberg‘s 1991 Computing Surveys paper What Every Computer Scientist Shou… Read More
2016-11-08 05:00
An overview of everything you need to know before diving deep into developing Java There are numerous tools, methods, environments and features that change the way you handle your code, that… Read More
2016-11-07 17:00
Last time, we’ve looked at how “regular” development practices have made sure that things worked at the development team level. It’s time to move on. Because, as… Read More
2016-11-07 14:20
Course Overview Scala is a general-purpose programming language. It has full support for functional programming and a very strong static type system. Designed to be concise, many of Scala&rs&hell…Read More
2016-11-07 14:00
What Cooldimi offers? We enable intelligent Chat-Robots, in short Bots What can I do with a bot? Before answering this question, Facebook’s introduction of a bot-building platform at i… Read More
2016-11-05 13:00
Docker for AWS allows you to exactly do that! This video shows: Create a highly-available Docker cluster on Amazon Web Services (0:00) Check configuration (5:43) Use Docker service… Read More
2016-11-03 20:00
Getting Started with Kubernetes 1.4 using Spring Boot and Couchbase explains how to get started with Kubernetes 1.4 on Amazon Web Services. A Couchbase service is create… Read More
2016-11-03 17:00
Using the product backlog can be challenging, and many product owners wrestle with overly long and detailed backlogs. This blog post provides ten practical tips that help you work with your… Read More
2016-11-03 14:00
The Rise of the Machines In recent decade we are witnessing the resurrection of interest in neural networks due to advances in computing hardware such as GPU accelerators and availabili… Read More
2016-11-03 11:00
I started this series writing about the need for coaches in Coaches, Managers, Collaboration and Agile, Part 1. I continued in Coaches, Managers, Collaboration and Agile, Part 2, t… Read More
2016-11-03 08:00
What is CockroachDB? CockroachDB is a project I’ve been keeping an eye on for a while now with great interest. It’s a an open-source, Apache 2 licensed, database (Github lin… Read More
2016-11-03 05:00
What does building a microservice actually means? Answered through the eyes of microservice frameworks It’s becoming impossible to ignore the microservices trend. Some would say it&rsq&hell…Read More
2016-11-02 20:00
Hello! In this post I will show you several ways how you can add module specific properties files in a Spring Boot project. It will cover a manual approach for making the property files prof… Read More
2016-11-02 17:00
Yesterday I wrote a blog post showing how to find the midpoint between two lat/longs using Cypher which worked well as a first attempt at filling in missing locations, but I realised I could… Read More
2016-11-02 05:00
If you have followed my blog you know that I have been involved in the open-source project Speedment for a while. During the summer and fall I have worked a lot with finishing up the next bi… Read More
2016-11-01 20:00
The Decision Model and Notation (DMN) specification is a relatively new standard by OMG (Object Management Group) that aims to do for business rules and business decisions what BPM… Read More
2016-11-01 17:00
“Man, I am in over my head! Everyone here is so much smarter than I am. Hope they don’t find out how dumb I really am. They’ll laugh me right out the door.” Maybe it… Read More
2016-11-01 14:00
Do you remember the first time you encountered a self-service checkout terminal in the supermarket? I do. My first reaction was to ask what incentives the store was going to give me for bein… Read More
2016-11-01 11:00
Over the last couple of weekends I’ve been playing around with some transport data and I wanted to run the A* algorithm to find the quickest route between two stations. The A* algorith… Read More
2016-11-01 08:00
Once you’ve reached the point where you’re a proficient programmer with a good understanding of a useful tech stack, you’re now faced with the sisyphean task of Keeping Up… Read More
2016-10-28 04:00
In Coaches, Managers, Collaboration and Agile, Part 1, I wrote about circumstances under which a team might want a coach. It wasn’t an exhaustive list. It had several questions de… Read More
2016-10-27 19:00
I’m proud that many people are actively addresing diversity issues. Research shows that diversity leads to better problem solving and often, more creative solutions. Unfortunately the… Read More
2016-10-27 16:00
Siri, Alexa, Cortana and Google Now are just the beginning. When it comes to getting things done, machines are increasingly edging humans out of the equation. Big data and analytics are at t… Read More
2016-10-27 13:00
I’ve been playing around with a dataset which has the timetable for the national rail in the UK and they give you departure and arrival times of each train in a textual format. For exa… Read More
2016-10-27 07:44
We are proud to announce the general availability of the new release of the CUBA Platform and Studio! Perhaps this is one of the most feature-rich platform releases ever – there are im… Read More
2016-10-27 07:00
When you run into a strange, seemingly unsolvable bug, improving your logging can be the best step you can take. Great logging is the easiest way to detect and fix entire classes of bugs. Wh… Read More
2016-10-27 04:00
Using instanceof is a code smell. I think we may agree on that. Whenever I see a construction like that I’m sure that something went awry. Maybe someone just didn’t notice a prob… Read More
2016-10-26 19:00
The latests and greatest Drools 6.5.0.Final release is now available for download. This is an incremental release on our previous build that focus on a few key improvements to round up… Read More
2016-10-26 16:00
Business intelligence (BI), which is one of the oldest concepts in data processing, is undergoing a radical reinvention. The concept has already evolved considerably since it first gained po… Read More
2016-10-26 13:00
The agile manifesto says we value working software. What is working software anyway? We can talk about software working in different contexts. First are the non-tangible parts (more working… Read More
2016-10-25 04:00
The Paysa Blog recently featured a post Silicon Valley’s Most Valuable Skills in which they looked at the most valuable software development skills in the United States in terms of ave… Read More
2016-10-24 16:00
Jython is a great tool for some quick java scripts using a pretty solid syntax. Actually it works wonderfully when it comes to implement some maintenance or monitoring scripts with jmx for y… Read More
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