Oracle Mobile Cloud Service First Hands-On Experience

Thanks to SOA Community and Jurgen Kress, I had a chance to play with Oracle MCS (Mobile Cloud Service). This new Oracle product is promoted with full force by Oracle PM team, there is dedicated Youtube channel with videos to watch and learn - Oracle Mobile Platform. Mobile Cloud Service offers mobile enterprise repository to organize and support your mobile development. Mobile backend services, security, connectors, storage and etc. can be defined and managed in (more...)

Creating a shared library for Jersey 2.19 to use with Weblogic 12.1.3

Weblogic server comes with a shared library so you can deploy JAX-RS 2.0 applications; but is limited to Jersey version 2.5.1 and the instructions for changing this are not entirely obvious or straightforward. I have recently joined a new team at Oracle and one of the first things I did was to look at upgrading the dependent libraries. Now I have talked to the Jersey team and they don't support this combination; (more...)

Java 8 Lambda : the very basics

Functional interface

In many cases – when talking about Java 8 – lambda-functions are the first thing that comes up. I found it a concept hard to grasp, as it slightly changes the way you think about coding. In this blog, I would like to show you some very simple examples, and explain what is what in the lambda world.

In versions prior to Java 8, we had SAM interfaces : Single Abstract  (more...)

IoT Hackathon Part III : Some enhancements to the sensor example

In my previous post I showed you how to setup a simple weather-station using Raspberry Pi, GroovyPi sensors and Python. It worked very well, but there is definitely room for improvement. In this short post I describe some of these improvements. First you will learn how to start the weather-station when you reboot the Pi. Next I will show you how to create some decent log info. Autostart The

Using Shared AM to Cache and Display Table Data

This post is based on Steve Muench sample Nr. 156. In my personal opinion, ADF samples implemented by Steve Muench still remain one of the best source of examples and solutions for various ADF use cases. Sample Nr. 156 describes how to use Shared AM to display cached data in UI table. Typically Shared AM's are used to implement cached LOV's (session or application scope). But it could go beyond LOV, based on the use (more...)

WebLogic Server 12.1.3 on Kubernetes

Most of you recall, that I have some little history in Oracle WebLogic server. Coming all the way back from BEA times. I don't want to comment on recent developments or features or standard support, but one thing is for sure: It is out there and having the chance to run it containerized is something many customers will appreciate. Maybe this is the one thing, that will make a real difference in our industry with (more...)

Scaling and Load Balancing WildFly on OpenShift v3 With Fabric8

Did you enjoy the first ride with Fabric8 and OpenShift v3? There's more a lot more to come. After we got the first WildFly container up and running on Kubernetes, without having to deal with all it's inherent complexity, I think it is about time to start to scale and load balance WildFly.

Make sure, you have the complete Vagrant, Fabric8, OpenShift v3, Kubernetes environment running. I walked you through the installation on Windows (more...)

Running WildFly on Kubernetes. On Windows. Fabric8!

Have you ever dreamed about running WildFly on OpenShift and leverage the latest Kubernetes features: On Windows? Sounds like blasphemy: Everything about those technologies is screaming GO and Linux. Windows doesn't seem to be the right fit. But I know, that there are many developers out there, being stuck on Windows. Corporate laptops, easy management and whatever reasons the different employers come up with. The good news is, there is a small and brave group (more...)

XML Data Control Article

Today Oracle published our article about the ADF EMG XML Data Control. With the article, also comes an extensive two part tutorial, go check them out at OTN:

Powerful and Easy ADF Data Control for XML Data
Enjoy reading and if you have any comments or remarks, let me know!

Other Resources:
ADF EMG Community
XML Data Control wiki

NetBeans 8.1 Remote Debugging with WebLogic

Need to debug your application?  With NetBeans 8.1 (dev) and WebLogic it's very easy to do.

First start your WebLogic server in debug mode.  The startup scripts generated for a domain provide an option to start the server in debug mode. 

To run in debug mode, set the environment variable "debugFlag" to a value of "true" and  start the server.

$ export debugFlag="true"
$ ./

 This launches the server with (more...)

NetBeans 8.1 Remote Deployment for WebLogic

Stoked thatNetBeans 8.1 will have support for deployment to remote WebLogic Server instances.


Oracle Process Cloud Application Player

With Oracle Process Cloud you can forget these days when you was waiting long to deploy BPM process and test Human Task UI. No need to wait anymore, in Oracle Process Cloud you could use Application Player feature, this allows to run the process and test Human Task UI almost instantly.

To demonstrate Application Player functionality, I have implemented basic process of Data Entry for the Claim Handling:

This process is using Web Form in (more...)

Clear ADF 12c deployment on Integrated WLS

Sometimes you want to cancel your Integrated WebLogic Server, however, if you do this while a deployment is currently going on, you might run into trouble. The log window will not tell you anymore than a remote deployment failed and that the Application can not be run:

You need to clear some directories in your JDevHome before the application deployment works again. Before clearing the directories, make sure you close JDeveloper.

Go to the folder: (more...)

Monitoring DevOps Style With WildFly 9 And Jolokia

DevOps is among the hottest topic these days. And the wide range of topics around it makes it hard to actually find a complete description or something that covers everything on a decent granularity. One thing is for sure: One of the most important parts is to deliver the correct metrics and and information for monitoring of the application.

Java EE and JMX
The standard way of monitoring Java EE servers is JMX. This is (more...)

Using JRE 1.8 for the Liberty Buildpack in Bluemix

The latest Liberty biuldpack update now adds the ability to switch to JRE 1.8 runtime. Given I am now switching to JDK 1.8 for all my projects this has come in very handy, and of course Spring Boot favors JDK 1.8 as well. The default is still JRE 1.7 so to switch to 1.8 set an ENV variable as follows in your manifest.yml as shown below.



Using JPA And CDI Beans With Camel on WildFly

I didn't really plan for it, but with a conference free month, I had the chance to dig around a little more and show you even more of the Camel on WildFly magic, that the WildFly-Camel subsystem provides.

The Business Background
The demo is derived from one on JBoss Demo-Central by Christina Lin. She demonstrates the use of File and JDBC connectors in Camel and also added the use of Spilt pattern and Exception handling method. (more...)

How to Hide Actions in OBPM 12c Workspace

In this article I explain how to hide the actions in the drop-down in Workspace.

In some situations you may need to hide the actions that are shown in the Actions drop-down in Workspace.

One way to do so is by configuring the access that users with a specific Workspace role have for a specific task (not to be confused with a swim-lane role), by going to the task definition -> Access -> Actions. For (more...)

Auto Refresh for ADF BC Cached LOV

You can configure auto refresh for ADF BC cached LOV and this works out of the box, no special coding is needed. My previous post describes how ADF BC session cached LOV behaves - ADF BC Session Cached LOV - Understanding Expire Time. Auto refresh can be configured for both application and session caching. One important thing - auto refresh doesn't work when ADF BC is configured with disconnected mode (ADF BC Tuning with (more...)

Starting a Process using a Timer with a Duration in Oracle BPM

In this blog article I explain three options to configure a timer start event based upon some configurable duration.

As far as I know firing a timer based on a duration is only applicable in case of a Timer Event Sub-process. Let me know if you think otherwise.

In case of an Event Sub-process the timer starts at the same moment when the process instance starts. There is no way to change it at any (more...)

Sending JMS Messages From WildFly 8 To WebLogic 12 with Camel

System integration is a nice challenge. Especially, when you're looking for communication standards and reliable solutions. In today's microservices world, everybody talks about REST services and http-based protocols. As a matter of fact, this will never be enough for most enterprise projects which typically tend to have a much more complex set of requirements. A reasonable solution is a Java Message Service based integration. And while we're not looking at centralized infrastructures and ESBs anymore, (more...)