URL parameters are an essential part of single page applications. They hold the current state of an application and enable users to open the application in a certain state. Here’s an example:

A database view is a great way to prepare complicated data structures and present it in a more convenient way. We can use database views to map our technical driven database structure (with a lot of tables and foreign keys) to a more business driven structure. This means that we might join tables, concatenate values or just rename the columns, because a particular name suits better to the current business context.

As I was reading about some Mockito features last week, I stumbled over the following tweet, which really made me laugh:

As I’m a passionate Windows user (sorry…), I often use VirtualBox (with Vagrant) to pull up a Linux box to use Docker or some other “Linux-only” stuff. Usually, this works really fine, but today my VirtualBox crashed with a STATUS_OBJECT_NAME_NOT_FOUND error:

I just stumbled over a post on Stackoverflow (http://stackoverflow.com/questions/30864466/whats-the-best-way-to-share-files-from-windows-to-boot2docker-vm) with the question how to mount a Windows folder to a Boot2Docker VM. Although the steps are a little bit confusing, in the end it is not difficult to do.

Today I came about a very annoying exception. After my development setup was running smoothly for the last six months, my application was getting database errors today. I know that I didn’t break something, so the problem had to be somewhere else - and it was: ORA-28001: the password has expired

Whenever you have a log-in on your site, the chance is high that you also want to have a log-out. The easiest way to do a log-in is to use HTTP’s Basic Auth. But how to do a log-out with Basic Auth?

Last week I attended a tech talk by Christian Schlichtherle, organized by Euro Staff in Berlin. The talk was about modularity and its different forms in software development. Christian talked about packages, libraries, APIs, dependency management and - as always when it comes down to modularity - about OSGi.

@Value

Some days ago I had to do a migration of legacy data to a new system. The task was mainly about copying stuff from the old system to the new system. This was done via a REST interface of the new service. So the task was completely IO bound and most of the time the migration script was waiting for a response of a REST call. A perfect situation to do some threading!