Posts

While looking into Azure Service bus with Spring Boot, I stumbled upon a nasty stacktrace caused by an IllegalArgumentException: java.lang.IllegalArgumentException: Property name must not be null So what is going on here? Setup I configured a queue persons on Azure service bus and in my spring boot application I defined a QueueListener using the @JmsListener annotation @Component public class PersonQueueListener { private static final String QUEUENAME="persons"; @JmsListener(destination = QUEUENAME) public void receiveMessage(Person person) throws JsonProcessingException { log....

As I’m looking into GraphQL and Spring Boot, I needed some test data. I didn’t feel very creative but I didn’t want to settle for user1, user2, … either. Enter Mockaroo! Generating Person data Mockaroo offers a wide range of predefined types, such as first name, IBAN, color, email, IP, and what not. For my GraphQL application I just need this: Field Name Field Mockaroo Type firstName First Name lastName Last Name email Email Next I set the number of rows to 10 and the format to JSON....

I’m a fan of docker, especially with my brand new macbook - spinning up loads of containers is always fun 😀. However when listing the containers, things get a bit unclear. Check the following output: CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d52c11b67cfe docker.elastic.co/elasticsearch/elasticsearch:7.13.2 "/bin/tini -- /usr/l…" 2 hours ago Up 2 hours 0.0.0.0:9200->9200/tcp, :::9200->9200/tcp, 0.0.0.0:9300->9300/tcp, :::9300->9300/tcp vb-bo_elasticsearch_1 76fee05889f0 logstash:7.13.2 "/usr/local/bin/dock…" 2 hours ago Up 50 minutes 0.0.0.0:5044->5044/tcp, :::5044->5044/tcp, 0....

You are probably familiar with this workflow work on different stories pull requests are approved and merged deploy changes inform the team For the last part, you check your todo list to get a nice description instead of some mysterious ID. You could do this manually, but this is very time-consuming, not to mention mind-numbing. Scripts to the rescue! High level approach Fetch the version information of the environment you want to deploy to....

In this post, I’ll cover different examples of what I like to call templating. Doing the same over and over again, but only few parts change each iteration. Environment Variables While working on integrating an API, I had to authenticate with a Bearer token in the authentication header. These tokens are typically short-lived, so they change multiple times a day. As part of the integration, I write down the API calls in Typora, a very nice markdown editor....

As I was working on some random data with a ZonedDateTime, it turned out Jackson was unable to deserialize it. How come? Why not use Jackson datetime module? The codebase I was working on, did not support the Jackson datetime module. It was also not possible to add this module as all Jackson related code was provided and the vendor stressed very clearly ‘not to mess things up with other versions’....

When working with AEM, you’re confronted with tedious work - writing components with dialogs defined in XML, lots of boiler-plating. Ideal for automation! Enter your favorite code generator Yeoman, “the Web’s Scaffolding ToolFor Modern Webapps” is great for this purpose. I came to know this when working on some JHipster project. It’s very easy to define generator (eg. generate an AEM component) using templates (renderscript, dialog, ….) I’ve put things together in the AEM Generator Repo....

Recently we had to integrate third-party minified javascript and css in an AEM client library. Unfortunatly this broke the build on Adobe Cloud. How did we solve this? What’s the problem? Minification! From our client, we received already minified javascript and styling we needed to integrate in the AEM website. Nothing too difficult, but the build on AEM Cloud finished with errors. On top of that, we could not download the logs, so we really were in the dark here....

What is this post about? I’m a huge fan of the SpringBoot backend - Angular frontend combination. And since my UX/UI skills are very limited, I really enjoy working with angular material, a really nice library of common widgets implemented as Angular components using the material design. I found myself doing the same thing over and over again: generate a table component, using the material table schematic create a service with Angular CLI connecting to a SpringBoot backend to retrieve objects, using the typical CRUD methods (getAll, save, delete, …) create an interface matching the json obtained from the backend Then I suddenly realized:...

With every job come boring tasks. Number one, by far, is filling out timesheets. And if you are unlucky, as I was in case of the yellow telco, you’re dealing with an old dud. What old dud? I’m talking about fusion by Oracle. It has a horrible interface - even entering a single digit is annoying. On top of that, it was an exotic, buggy, beta version - no one wanted to touch it , including Oracle....