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Hello to the Java User Group Cologne!

JUGC provides conference talks and workshops with leading professionals for free. The regulars' table is every last Friday of every month -- since the year 2002! Besides events, communication channels are available.

Contact here: info[at]jugcologne[dot]eu.

Registration and further details for current events here:

Mailing list can be found here:

Twitter handle is available too. Follow us to keep yourself up to date:

We were part of the Adopt-a-JSR program for JSR-344:

Hall of Fame: Neal Ford, Ed Burns, Dr. Neil Gafter, Dalibor Topic, Stefan Tilkov, Nils Wloka, Stefan Glase, Stefan Scheidt, Marc Guillemot, Mike Wiesner, Ingo Maier, Patrick Chanezon, Andreas Ebbert-Karroum, Matthias Wessendorf, Arno Puder, Andrea Provaglio, Vaclav Pech, Jonas Bonér, Roman Strobl, Carol McDonald, Joey Shen, Simon Ritter, Mike Keith, Owen Taylor, Maxim Shafirov, Mike Aizatsky, Wayne Beaton, Frank Nimphuis, Eberhard Wolff, Adam Bien, Angelika Langer, Kirk Pepperdine, Dr. Heinz Kabutz, Corneliu Vasile Creanga, René Gielen, Rainer Hermanns, Hans Dockter, Toomas Romer, Bernd Bohmann, Marcel Soulier, Falko Riemenschneider, Carsten Mjartan, Fabian Lange, Andreas Schreiber, Dr. Simon Wiest, Igor Drobiazko, Jason van Zyl, Sven Meier, Pavlo Baron, Frank Pientka, Hamlet D'Arcy, Heiko Rupp, Margrit Höhme, Oliver Gierke, Thomas Ferris Nicolaisen, Martin Fowler, Robert Rees, Antonio Goncalves, Axel Fontaine, Doreen Seider, Andrew Bayer, Daniel Sachse, Sven Efftinge, Gerrit Grunwald, Julian Stücker, Alasdair Collinson, Geertjan Wielenga, Roland Huß, Wolf Schlegel, Karl Heinz Marbaise, Jens Neuhalfen, Jörg Vollmer, Dr. Reik Oberrath, Stephan Kaps, Geertjan Wielenga, Vadym Kazulkin, Rodion Alukhanov, Dominik Schadow, Mateusz Chrzonstowski, Andy Gumbrecht, Sami Ekblad, Teemu Suo-Anttila, Teemu Suo-Anttila, and others.

Roadmap (older events will be added soon)
2006.07.04 Productive Coder, with Dr. Heinz M. Kabutz
2006.09.06 IntelliJ IDEA, with Mike Aizatsky
2006.12.06 Performance, with Kirk Pepperdine
2007.02.28 Performance, with Angelika Langer
2007.04.02 JEE 5, with Adam Bien
2007.06.18 Spring, with Eberhard Wolff
2007.07.03 IDE Shootout, with Maxim Shafirov, Mike Aizatsky, Roman Strobl, Wayne Beaton, Frank Nimphius
2007.08.03 Ajax, Caching, SOA with Professor Arno Puder, Max Antoni, Owen Taylor
2007.08.21 EJB 3, JPA, with Mike Keith
2007.10.16 JavaFX, with Simon Ritter
2007.11.30 Java Evangelists, with Carol McDonald, Joey Shen
2008.02.11 Groovy & NB 6, with Johannes Link, Roman Strobl
2008.03.10 Dr. Neil Gafter
2008.04.14 Spring, with Stefan Scheidt
2008.05.26 Terracotta, with Jonas Bonér
2008.05.30 IntelliJ, TeamCity, with Vaclav Pech
2008.06.23 AOP in Web Apps, with Andrea Provaglio
2008.07.07 iphone crosscompilation, with Prof. Arno Puder
2008.07.25 Advanced JSF, with Matthias Wessendorf
2008.08.11 GWT, Scrum bei JSR 264
2008.08.25 WebTest
2008.09.01 Spring Security, Scala
2008.10.13 Spring AOP und Spring Source Advanced Pack for Oracle, with Patrick Chanezon, Andreas Ebbert-Karroum
2008.11.03 OpenJDK und JSR 311 (REST), with Dalibor Topic, Stefan Tilkov
2009.02.09 AOP und Flex, Air, Java, with Sebastian Jancke, Corneliu Vasile Creanga
2009.04.20 Struts2, Gradle, Rock Star Programmer, JSF 2, Hans Dockter, Neal Ford, René Gielen, Rainer Hermanns, Ed Burns
2009.05.29 JavaRebel , JSF 2.0 vs Struts 2.1, Toomas Romer, Matthias Wessendorf, Bernd Bohmann, René Gielen, Rainer Hermanns
2009.07.06 JavaFX, LOP, JBoss Portal, with Marcel Soulier, Falko Riemenschneider, Carsten Mjartan
2009.10.05 Eclipse RAP, Python-Java, Hudson, Fabian Lange, Andreas Schreiber, Dr. Simon Wiest
2009.11.16 Maven 3, Jason van Zyl
2009.12.07 XMLVM, Tapestry, Dr. Arno Puder, Igor Drobiazko
2010.03.08 Bad Bank, Groovy, Wicket, Geronimo-EE, Pavlo Baron, Hamlet D'Arcy, Sven Meier, Frank Pientka
2010.07.12 RHQ, Heiko Rupp
2010.09.06 AspectJ, Margrit Höhme
2010.11.08 Agile in a Year und Hades, Thomas Ferris Nicolaisen, Oliver Gierke
2011.02.01 NoSQL, DSL/Agile Manifesto, with Robert Rees, Martin Fowler
2011.05.09 JEE 6 and CDI, with A. Goncalves, Continuous Delivery für Java Anwendungen, mit Axel Fontaine
2011.06.22 "OSGi-basierte Applikation für Smartphones und Desktop-Systeme; Erfahrungsbericht", mit Doreen Seider
2011.06.25 Jenkins in town: meet and drink, with Andrew Bayer; (JUG Münster also in town) (start: 2pm)
2011.07.29 Java 7 Launch Party
2011.10.22 "Agile ALM" -- Book Launch Event (Soirée), Michael Hüttermann
2012.08.24 Xtend (Sven Efftinge), JBoss Forge (Daniel Sachse)
2012.10.26 JavaFX (Gerrit Grunwald), Clojure (Stefan Tilkov)
2012.11.03 Soirée: DevOps for Developers, Michael Hüttermann
2013.01.25 Einführung in JSF (Michael Müller), JSF 2.2 / JSR-344: HTML5-Support (Imre Osswald)
2014.03.24 Java 8 (Simon Ritter), Kick-Ass Development (Sven Peters), SonarQube (Olivier Gaudin)
2014.04.25 jclouds, Jenkins, with Andrew Bayer
2015.09.14 Java Generics (Julian Stücker), Microbenchmarks mit Java (Alasdair Collinson)
2015.11.16 Spring Boot (Jochen Pier), JavaEE 6 und Microservice (André Goliath)
2015.11.23 Free Open Source Tools for Maven, HTML5, IoT and Java EE (Geertjan Wielenga), Java Lambdas and (parallel) Streams (Michael Müller) 2015.12.09 The Secrets of Concurrency (Dr. Heinz Kabutz)
2016.01.25 Docker + fabric8 (Roland Huß)
2016.02.18 Advanced Maven (Karl Heinz Marbaise) und Mit Microservices auf die Überholspur (Wolf Schlegel)
2016.03.21 Git from the inside (Jens Neuhalfen)
2016.05.09 Über Faulheit, Feigheit, Unfähigkeit und Clean Code (Jörg Vollmer, Dr. Reik Oberrath)
2016.09.09 NetBeans Day Cologne (Special Guests: Geertjan Wielenga, and others)
2016.09.19 Datenbankänderungen, Tools im Vergleich (Stephan Kaps)
2016.10.24 Java Memory Model für Anfänger und Fortgeschrittene (Vadym Kazulkin, Rodion Alukhanov)
2016.11.28 Sicherheit mit Java (Dominik Schadow)
2016.12.12 OData REST services in Java with Apache Olingo (Mateusz Chrzonstowski)
2017.02.17 Java Web-Entwicklung mit Vaadin und TomEE, Andy Gumbrecht (Tomitribe), Sami Ekblad (Vaadin), Teemu Suo-Anttila (Vaadin), Teemu Suo-Anttila (Vaadin)
2017.05.08 Besser schlafen durch Inhaltsverschlüsselung, mit Jens Neuhalfen
2017.07.03 Leben, Leiden und Rettung eines IT-Systems, mit Dr. Gernot Starke
2017.09.11 Java Special, with Venkat Subramaniam TBD
2017.09.25 Kotlin, Reactive Programming, Git