Recently, I finished "Influence" by Robert B. Cialdini.  I like reading books about Psychology and "Influence" both is comprehensible and useful. In this article, I want to highlight some of the most important take-aways I found to be of relevance to my life.

Recently, I wanted to keep the change history of entities saved via Hibernate and also have a versioned database. Hence, I used Hibernate Envers and Liquibase.

The tables for envers, both the revinfo table and the _AUD tables for each entity, have to be included in the changeset of Liquibase:

Recently, I finished reading the book "Principles" by Ray Dalio. This is a short review of my most important take-aways from the book.

First of all, the design and font of the book really resonates with me. That's the kind of design I choose for my own book ...

Some time ago, an application of mine that is deployed in the Pivotal Cloudfoundry began throwing errors and crashed:

In this article, I want to share what I learned about testing a Spring application without loading it completely. This can be done by using @DataJpaTest, @WebMvcTest, @SpringBootTest, @AutoConfigureMockMvc and @DataJpaTest. These annotations are part of "test slices" of Spring which allow to test certain beans of the application without loading other beans.

This is the final report about my temporal stop starting new projects. (update #1, update #2).

This is a short article about a concept that could have massive mind-hacking effects. Years ago, when I first organized workshops for my employer, I got a "time budget" of a specific amount of hours for preparation and execution of the workshop. First, I misunderstood the word "budget" and thought I would get an amount of Euros to spend on whatever.

I just upgraded a Java project from Java 8 to OpenJDK 11. The project is running on a Cloudfoundry, using the Java buildpack. After successful deployment with the new Java 11, the application won't start properly and threw the a java.lang.UnsupportedClassVersionError. The solution for this is to add the following variable in Cloudfoundry:

The other day, I wrote about "Candy Tasks". These small tasks that can be completed in a few minutes and without much effort. If finished, they provide a nice morale boost and a feeling of accomplishment. I argued that everybody has small gaps of time during even the busiest of days that can be filled with candy tasks.

Earlier, I decided to temporarily stop starting new projects to allocate resources to where I can make the greatest positive impact, and I reviewed my progress in this feat. This is another status report.