Archive for the ‘Open Source’ Category

I have a domain that I manage through Cloudflare, e.g. There I have a subdomain that should point to my public IP, e.g. . Synology Scripts Create the “Update the IP Script” Put this script into a stable place, e.g. /var/services/homes/domdorn/root/ Putting it into a stable place is important to not lose it […]

In an event-sourced environment, you sometimes have to introduce an artificial delay to some actions to make sure read-sides had the time to update themselves. If you’re using the classic routing mechanism with a routes-file, you can add such a delay declaratively, like here: This would delay the response of the update-action by 800 Milliseconds, […]

Getting JRebel to work with the embedded-glassfish maven plugin. Read here how to do it.

Fast redeploys with Vaadin7 and Glassfish 4 .. spend your JRebel bucks for some beers (at least in the beginning) 😉

Problems with Embedded Glassfish 4 Maven plugin and an expired certificate? This post will show you how to solve it.

XML templates for the JPA 1.0 and JPA 2.0 versions of the orm.xml and persistence.xml files. These should allow your IDE of choice to validate and auto-complete documents.

This post shows how to use the JPA EntityListener Annotations with Avaje Ebean.

This post tries to collect a list of important links for everyone wanting to optimize his/her Glassfish v3 Server for production use.

Solutions to the Absent Code attribute problem often encountered when trying to do unit testing with Maven&/JUnit.

This little post shows how to replace the start attribute of the ol tag in XHTML STRICT pages to validate again!