Roland Weisleder

@rweisleder.de

556 Followers 298 Following

Independent Java Software Developer and Consultant. Bringing Legacy Java Systems Into the Future.

Display in a bus showing a shell with a login prompt
Main stage of the Voxxed Days Luxembourg
Speaker in front of a screen showing the title slide of the talk "Lessons from Spec-driven Development"
Display of a ticket machine showing the Windows Explorer
Git graph showing a tangled mess of overlapping branches and merges, all created by a single developer in one day.
Screenshot of sessionize.com showing the author being recognized as "Speaker of the Day"
Java code snippet with two fields: private Boolean optional = false; private @Nullable Boolean isMandatory = null;
Java exception stacktrace in IntelliJ
Feedback for JCON conference talk
Partner Java User Groups of JCON
Screen with upcoming talk at JCON
Hallway of JCON conference in the Cinedom cinema in Cologne
Android notification about a failed contactless card payment and the suggestion to insert the card
dialog with a Java NullPointerException at the homepage of @jcon.one
A digital display board of the Berlin S-Bahn that says in German “Train service is interrupted due to computer restart”
source code of a hello world application built with Spring Boot
A line chart titled "Time spent per task" compares planned vs. actual hours per week over a 16-week period. The planned hours remain stable, while the actual hours spike dramatically around week 10. After the spike, actual hours stay consistently higher than planned.
A box of 'STINKSTIEFEL' grumpy fortune cookies with sarcastic messages in German, featuring black cookies and a grumpy face illustration.
Talk "It takes two to tango" at Spring User Group Berlin
Rotary phone
Elevator in a hotel with a sign with room numbers per level
Popcorn machine in an office
Berlin Central Station
An emergency exit sign with a sticky note labelled "The sign"
Sunset at a lake
Deodorant in a restroom
E-Mails der Deutschen Bahn zu Fahrplanänderungen für zukünftige Fahrten