0 Handle HTTP PATCH request with Java Servlet
The Java Servlet specification does not include handling a PATCH request. That means that class javax.servlet.http.HttpServlet does not have a…
Author Lucas Jellema
Lucas Jellema
Lucas Jellema, active in IT (and with Oracle) since 1994. Oracle ACE Director and Oracle Developer Champion. Solution architect and developer on diverse areas including SQL, JavaScript, Kubernetes & Docker, Machine Learning, Java, SOA and microservices, events in various shapes and forms and many other things. Author of the Oracle Press book Oracle SOA Suite 12c Handbook. Frequent presenter on user groups and community events and conferences such as JavaOne, Oracle Code, CodeOne, NLJUG JFall and Oracle OpenWorld.
0 Oracle Managed Kubernetes Cloud– First Steps with Automated Deployment using Wercker Pipelines
Oracle announced a managed Kubernetes Cloud service during Oracle OpenWorld 2017. This week, I had an opportunity to work with…
1 Implementing Authentication for REST API calls from JET Applications embedded in ADF or WebCenter Portal using JSON Web Token (JWT)
The situation discussed in this article is as follows: a rich client web application (JavaScript based, could be created with…
0 Microservices and Updating Data Bound Context on Oracle Cloud with Application Container and Event Hub (plus DBaaS and MongoDB)–Part Two
This article describes – in two installments – how events are used to communicate a change in a data record…
0 Microservices and Updating Data Bound Context on Oracle Cloud with Application Container and Event Hub (plus DBaaS and MongoDB)–Part One
This article describes – in two installments – how events are used to communicate a change in a data record…
0 Prepare and link bind Oracle Database Cloud, Application Container Cloud, Application Container Cache and Event Hub
A fairly common combination of Oracle Public Cloud services that I use together – for example for the implementation of…
0 Online Videos with Lucas Jellema–Live recording of Talks, Interviews and Stuff
Coming up: 50 Shades of Data – JEEConf in Kyiv, Ukraine An overview of some of my recent recordings: …
4 Run Oracle Database in Docker using prebaked image from Oracle Container Registry–a two minute guide
This article will show how to run an Oracle Database on a Docker host using the prebaked images on Oracle…
0 Quick introduction to Oracle Container Registry–running one of Oracle’s prebaked images
Oracle has been active with Docker for quite some time now. From the first hesitant steps from some enthusiastic employees…
1 First steps with Istio on Kubernetes on Minikube on Windows 10
In this article, I discuss my steps to get going with Istio [service mesh] on Kubernetes running on Minikube on…
0 Installing Minikube and Kubernetes on Windows 10
Quick notes on the installaton of Minikube for trying out Kubernetes on my Windows 10 laptop (using VirtualBox –not Hyper-V)Following…
0 Rapid first few steps with Fn – open source project for serverless functions
Project Fn is an open source project that provides a container native, poly-language, cloud agnostic (aka run on any cloud)…
0 Create Debian VM with Docker Host using Vagrant–automatically include Guest Additions
A short and simple article. I needed a Debian VM that I could use as Docker host – to run…
1 JSON manipulation in Java 9 JShell
In this article I will demonstrate how we can work with JSON based data – for analysis, exploration, cleansing and…
0 Java 9 – First baby steps with Modules and jlink
In a recent article, I created an isolated Docker Container as Java 9 R&D environment: https://technology.amis.nl/2017/10/11/quick-and-clean-start-with-java-9-running-docker-container-in-virtualbox-vm-on-windows-10-courtesy-of-vagrant/. In this article, I…
0 Quick and clean start with Java 9–running Docker container in VirtualBox VM on Windows 10 courtesy of Vagrant
The messages from JavaOne 2017 were loud and clear. Some of these:Java 9 is here, the OpenJDK has all previously…
7 ODC Appreciation Day : Timeline component in Oracle JET, Data Visualization Cloud, APEX and ADF DVT: #ThanksODC
Here is my entry for the Oracle Developer Community ODC Appreciation Day (#ThanksODC).It is quite hard to make a choice…
0 SaaS going forward at Oracle OpenWorld 2017–Smart, Connected, Productivity, Multi-Channel
I have not seen many sessions on SaaS and business applications at OracleOpen World. Yet SaaS is becoming increasingly more…
0 Some impressions from Oracle Analytics Cloud–taken from keynote at Oracle OpenWorld 2017
In his keynote on October 3rd during Oracle OpenWorld 2017, Thomas Kurian stated that the vision at Oracle around analytics…
0 Top 5 Infrastructure (IaaS) announcements by Oracle at Oracle OpenWorld 2017
From Thomas Kurian’s keynote during Oracle OpenWorld 2017 – see https://youtu.be/cef7C2uiDTM – a quick recap of the five most important…