As Java consultants, when we land on a new gig with an unknown application, we need to come up to speed as quickly as possible. Going through codes is inefficient and can easily miss an important interaction. In my experience, one of the best ways to learn a new Java…

It’s your first day at your new gig. Everything is new and you have to adjust quickly to the environment. However, you notice your favorite Java applications are barking with exceptions about certificates. Here’s a sample Exception: ... sun.security.validator.ValidatorExeption: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: …

I was looking into executing untrusted Groovy Script in a sandbox. I was never a security guy, so the process was a valuable learning experience. I will use this article to summarize my findings. I am working as a consultant at Capco.com. Many thanks to my colleagues who are generous…

When I read about Flutter/Dart’s null safety beta, I was really excited to give it a try. This article talks about my experience migrating my Flutter Web application to fully embrace this exciting new feature. Let’s get started. Upgrade Dependencies I started by building my old project “Carry On Baggage Allowance Calculator”…

Do you want to have a blogging platform that is both beautiful and manageable? In the past, you are limited the clunky Wordpress or the snappy but not so user friendly static site generators. …

Motivation I read a lot of online news sites to help me catch up with the latest stories. From time to time, I found that some news stories from different sources are simply rephrasing each other. This happens sometimes with technical articles too, but I digress. This love of reading news…

Have you heard of Flutter? The next Big Thing? Or the UI framework that’s built for the Fuchsia OS, the OS that is going to replace Android? I was skeptical because of all these marketing push. …

Have you ever wonder what goes on in your backyard when you are sound asleep? This simple setup will reveal everything to you. Maybe it’s just out of curiosity. Maybe you are a nature lover and don’t want to miss out on the nocturnals. Whatever it is, I am glad…

Simple Docker image for a Node + Java environment. As I continue to build on my Raspberry Pi Infrastructure, I need to create a Docker image that contains both Java and Node. Unfortunately, no such thing exist as an official image and I don’t like using images created by others…