Spurious ClassNotFound Exception during maven builds
Sunday, January 13, 2019
I first observed this behavior on our build server running Jenkins. We have two build jobs, building
snapshot versions. Project A and B. Project B depends on A. Always dealing with snapshots. Jenkins ran
mvn clean install command. Now, when both jobs were running in parallel on Jenkins, sometimes project
B failed during compilation or running unit tests with weird ClassNotFound exceptions. The missing classes were
from project A, of course.
Alphatronic P2 plays Silent Night
Wednesday, December 26, 2018
This more than 30 years old Triumph-Adler Alphatronic P2 is still working. It can also play music. Here
is a video how it plays the song Silent Night. This song is this year
200 years old.
Getting to run some delphi program with wine under linux
Saturday, May 26, 2018
Maybe you have an Windows program, but you don’t want to start your Windows virtual machine (or boot into Windows)
everytime to use it. There is wine which provides a compatibility layer for Windows
programs so that they can run on Linux and other operating systems.
Easter date calculations
Sunday, February 18, 2018
When you create a calendar, like OOoCalendar, it’s nice, if
the calendar already calculates holidays. One of the holidays, that is every year on a somewhat
different date is Easter. There are many other Christian holidays that depend on the Easter day like
40 days after Easter is Ascension Day.
Sunday, December 3, 2017
Do you know the “Olson database”? It’s the database in which all the timezones of the world
are described. The timezones of the present - and also of the past.
See the wikipedia article tz database for more information.