Benjamin Nothdurft

On the 15th November 2018, we welcome Benjamin Nothdurft to the Oracle Dublin Java User Group.

Benjamin now works for Codecentric, and formerly ePages, the German ecommerce provider which has help over 140,000 businesses get their online shops open.

Check out the full talk abstracts below. The Dublin 2 venue is revealed on booking. .


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Additional Information

Session Abstracts

19:00 - Insights into the Machinery of a Continuous Delivery Pipeline - Automated Test Result Aggregation and Analysis for DevOps

Project Overview: We are developers in a dedicated release and test automation team that runs a continuous delivery pipeline for a leading eCommerce platform (currently running approximately 170,000 stores).

Due to the large number of pipeline machines (for the respective installation and patch types), the time required to evaluate test results (selenium) has increased significantly over the past year. As automation specialists, we have decided to introduce a centralized database for all test results that are generated by the hundreds in each pipeline run.

Our implementation relies on the REST-based ELK stack (Elasticsearch, Logstash, Kibana), which has become established during the performant and distributed monitoring of system logs.

We have extended the technological basis with the possibility to administer test reports with different administration and UI clients. In addition, the individual components were decoupled by various Docker containers with template-based configuration files (Jinja2) as well as provisioning tools (Ansible, Puppet).

We have consistently focused on test-driven development using CircleCI. The finished overall solution is integrated in the individual, corresponding Jenkins jobs using a dedicated Docker registry as needed. The logstash containers provide the individual test results with environmental data.

In our session, we present our motivation, possible solutions and the implemented solution components, especially in practical interaction within a Continuous Delivery Pipeline.

Let yourself be surprised by the variety of possible uses within a productive context!

20:30 - Applying (D)DDD and CQ(R)S to Cloud Architectures

Many software architectures may benefit from the introduction of (Distributed) Domain-Driven Design and Command Query (Responsibility) Separation. Regardless if you are maintaining large legacy software systems or whether you start a new microservices platform as greenfield approach one always has to think about the domain language and service design.

In this talk Benjamin will show you a given example of how to get started with introducing domain models, bounded contexts and implementing CQRS where it makes most sense while trying to avoid the technical debt trap e.g. misconceptions and fallacies.

The talk consists of several steps / iterations each with a small lecture a dedicated implementation goal that will be solved. At the end one will be able to apply many DDD principles and will have learned how to tailor systems according to their domain – effectively and efficiently while using modern technology standards.

About Benjamin

Benjamin recently joined the forces at codecentric AG with a long-term hands-on experience with introducing, building, coaching and speaking about Java, Testing, Microservices, Docker and disruptive technologies (especially in the e-commerce sector).

He is a leader and founder of Thuringia JUG in Germany, a board member at the Java Aktuell magazine and at the microXchg conference as well as the JavaLand conference — offering over 100 sessions for more than 2000 visitors each year.

Besides the Java ecosystem he also founded and runs a local software craftsmanship community and a Devoxx4Kids community – totalling over 40 events in the past 3 years including quite a few full-day workshops, code retreats and hackathons. Regularly he also gives university lectures on OOP, Java, containers, Git, Project Management and Agile Methodologies.

In his leisure time he enjoys road cycling, art and theaters, wine/gin/whiskey tastings and discussions about politics and improving IT organizations.

You can follow him on twitter at @DataDuke. .

About the Oracle Dublin Java User Group

The Oracle Dublin Java User Group, aka DubJUG, is Ireland's oldest JUG serving Java developers in Ireland. Since 2006, the Group has been bringing Java Champions, Java One Rock Stars, and Duke Award winners to Dublin for the benefit of our community of Java software professionals. Oracle is the current Headline Partner.

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Stackand.Co enrich the professional lives of Java / Scala software professionals - with over 20 years experience in the Irish ICT market, they have helped many great people elevate their careers.

Perhaps they can do the same for you working with companies like this one?

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Equifax Technology Ireland is the Research and Development arm of global credit scoring organisation Equifax - it has recently opened a technology centre in the Bloodstone Building, Dublin 2.

Now looking for developers!

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GuruTeam delivers high end ICT learning, mentoring and consultancy services, in Ireland, the UK and worldwide. Their expert instructors formulate bespoke training to suit their clients and can deliver programmes on or offsite.

New courses for 2018 include Blockchain with Ethereum / Corda (presented by Ben Evans), Machine Learning for Java and Python developers, IoT, GDPR, Hands-on Web Security for Java Developers as well as Modern Security with Ben Evans, Angular 5 and more

Website: / Twitter: GuruTeamIreland


Teckro are rethinking every element of clinical research - the people, the processes, the technologies used. By making it possible for all relevant information to be instantly accessible to every active member of a clinical trial and for the entire study teams to be connected effortlessly, they are broadening the possibilities of what can be achieved. This means drugs and treatments for the world’s most complex diseases are being developed quicker, and Teckro's long-term goal of continuously improving healthcare for everyone is realised.

Teckro's partnership with DubJUG means that they can interact and exchange ideas with some of Dublin’s best developers.

Website: / Twitter: TeckroOfficial


Sonorplex add the edge to event attendance with their innovative 'Mark and Review' video platform. Download the Sonorplex app on your smartphone, attend DubJUG, and click points of interest in realtime. Your own personal 'marked' copy will be available for reviewing within hours, allowing you to relive the presentations again and again!

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tcube provides city-centre co-working / hotdesks and fully serviced office space for ICT professionals and companies specifically. Their community knits so well together remote workers, contractors, city visitors and entrepreneurs / startups immediately become a part of a network of like-minded people who are able and willing to help one another. Offices in Fleet Street, Trinity Street and Grafton Street provide great locations with a huge benefit when it comes to hiring and retaining millennials.

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