At January the 13th and 14th I've attended the jSpirit Unconference 2018.
Here are some impressions/things I've learned. Please note that this
blog entry is not only written in English because everything else is
written in English but also because the conference language was
The Unconference was at Lantenhammer
Erlebnisdestillerie, Josef-Lantenhammer-Platz 1, 83734 Hausham /
Germany. Yes, this was a real distillery but there was no
distilling during this weekend.
At the distillery we had two "rooms":
At the stills
As you have may seen from the images there were no projectors but
some flip charts.
A note about accommodation. At the location itself (this means
within walking distance) there are no hotels but only some
guestrooms. As soon as you are able to drive some kilometers you get
plenty of hotels.
At the Friday evening there was a spontaneous get together at a
restaurant in a nearby village. The menu was typical Bavarian. That
meant a lot of meat meals which was good for me but not for the
This was an Unconference. So there were no predefined tracks and
speaker but every attendee was invited to offer or request some
topics to talk about. Each morning we created a list of topics for
talks and then voted for them. The most popular made it into
the talks set for the day.
The schedule of the first day:
The first talk I've visited was about build tools. Here I've learned
that Gradle was rewritten from Groovy to Java. This broke some
features what upset previous users.
At next I've listened to Sven
Rupperts talks about "Functional Patterns with Core Java". He
introduced his functional-reactive-lib.
For the german readers there are some articles at jaxenter.
After lunch I've visited "Java after eight" by Dmitry. Here I've
learned that Java 9 isn't a LTS release but Java 11. So with the
release of Java 10 next month it will be outdated. Skipping the non
LTS release may also not be the best thing to do as any feature can
be deprecated by a normal release and removed by the following
normal release. So when switching from one LTS release to the other
features may be missing. If you are now as shocked as I was then you
may want to watch these two talks from fosdem. The
State of OpenJDK and OpenJDK
Governing Board Q&A. In the later one listen for Mark
Reinhold saying "And how much do you pay them."
As the last talk we discussed what the next thing to learn is. The
conclusion was that Java may be outdated but the JVM will live.
After the talks we got a tour through the distillery where every
step in the production process was explained. In the end we got to
taste some of the produced beeverages.
While this was the end at the distillery this wasn't the end for our
day. We went some kilometers south and walked some hundred meters up
to an Alm. After some good food we sledged down to the cars.
The schedule of the second day:
The first and only talk at the second day was "Dealing with
difficult people at work". This is for so many people a thing that
nobody wanted a parallel talk.
In the second talk Simon
introduced the concept of Mob programing. There the whole team
programs at one problem. A concept I've never heard before.
Before lunch Andres
explained the JCP and how the JCP Execute committee is elected and
wanted some feedback from us.
After lunch I've took part in Event storming leaded by Zlatko and Gerd.
And for the last time slot of the day I've skipped the two talks and
looked through the IoT box brought by Bernhard.