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GROUP9 Sharing the knowledge


Wat houdt onze GROUP9-ers bezig en wat zien we in de wereld van Java en IT gebeuren dat van belang is om te weten?

I had a lot of fun discussing the benefits of embedded process engines on a recent episode of Camunda Question Corner. Even though every approach has its pros and cons, embedding a process engine enables you to do some things that make it a very enticing option. This post explores... Read more
Gepubliceerd op 2021-12-19
Source: Airquill
When you work with Raspberry Pis you will quickly run into to fact that you want to create a bootable image on a microSD card. On Ubuntu you can install Raspberry Pi Imager which is a snap package. Although this is an easy install, snap packages run in a confinement... Read more
Gepubliceerd op 2021-12-01
Source: Morten Minke
Debian 10 and higher (e.g. Buster or Bullseye) no longer provide Java 8. However certain software, including Sonatype Nexus, still is not compatible with versions higher than 8. In this past it was easy to install AdoptOpenJDK. However now that AdoptOpenJDK has moved to the Eclipse Foundation and is called... Read more
Gepubliceerd op 2021-11-13
Custom hostname resolution has been proposed for Java 181 and would allow secure DNS implementations without operating system support as well as faster lookups in cloud environments. However it also makes diagnosing network problems harder. https://twitter.com/OpenJDK/status/1453825089275764739 ↩... Read more
Gepubliceerd op 2021-10-30
 Impressie Competence Dag 2021/1Op 2 juli mocht het weer: een GROUP9 Competence dag organiseren. De versoepeling van de Corona maatregelen maakte het mogelijk dat we elkaar weer zagen (natuurlijk op een veilige manier, en in lijn met de richtlijnen), wat in deze tijd van thuiszitten voor velen een welkome afwisseling... Read more
Gepubliceerd op 2021-07-26
IntroductionLast year, we at GROUP9 started out with creating a Technology Radar, the approach started by the guys over at ThoughtWorks. The goal is actually quite simple: use the collective knowledge and intelligence of our company to come up with the new Technologies, Tools, etc. which we think will be... Read more
Gepubliceerd op 2021-07-19
Het bericht Tiese Barrell uitgeroepen tot Camunda Champion verscheen eerst op Group9.... Read more
Gepubliceerd op 2021-06-16
Source: GROUP9 News
Het bericht Rick & Vincent geven NLJUG JFR Masterclass verscheen eerst op Group9.... Read more
Gepubliceerd op 2021-06-16
Source: GROUP9 News
A while ago I came across an article indicating that Google was planning to switch to using the Canvas API for Google Docs. This let to some contemplation as to why Google is doing this and what this could mean for the future of the web.... Read more
Gepubliceerd op 2021-05-28
This is the first of a number of posts, Don’t ask me how many or how often I will post. They will all be in the categories zigbee, dev and compose.... Read more
Gepubliceerd op 2021-05-23
Source: Ron Smits
In this blog we will create a simple unmarshaller at deploy-time using bytecode and measure its performance. This blog is part 4 of 4, the series consists of the following posts: Writing an unmarshaller by hand Constructing an unmarshaller using reflection Generating an unmarshaller using annotations Creating an unmarshaller using... Read more
Gepubliceerd op 2021-05-14
Last week I was talking to a colleague about how a certain problem that could be solved using git submodule bascically mounting a git repository into another git repository. As an example I showed how this blog uses it for the theme.... Read more
Gepubliceerd op 2021-05-08
Source: Ron Smits
In this blog we will construct a simple unmarshaller at compile-time using an annotation processor and measure its performance. This blog is part 3 of 4, the series consists of the following posts: Writing an unmarshaller by hand Constructing an unmarshaller using reflection Generating an unmarshaller using annotations Creating an... Read more
Gepubliceerd op 2021-05-04
An annotation processor is a plug-in to the Java compiler itself. So in order to debug a processor it either needs to run inside the compiler itself or be provided with a mock Compiler API. The Compiler API is rather complex and extensive to mocking it, even using mocking libraries... Read more
Gepubliceerd op 2021-05-01
In this blog we will construct a simple unmarshaller at runtime using reflection and measure its performance. This blog is part 2 of 4, the series consists of the following posts: Writing an unmarshaller by hand Constructing an unmarshaller using reflection Generating an unmarshaller using annotations (to be written) Creating... Read more
Gepubliceerd op 2021-04-24

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