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Spurious ClassNotFound Exception during maven builds

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 the standard 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.

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Easter date calculations

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.

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Timezones

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.

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Andreas Dangel | subscribe via RSS | adangel | .onion © Copyright 2020. adangel.org (31 January 2020)