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RxPreferences and Dagger

I have been rewriting a Settings (Preferences) activity for an old Android app. Since I was using RxJava in the app, I decided to try out RxPreferences which allows you to use SharedPreferences with a reactive wrapper. I found it quite good to use, although the blog post that accompanies it is a bit out of date. While I did’t ...

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Spring Data MongoDB Tutorial

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In today’s world it is very important to get the application up and running as soon as possible. The application should also be easy to develop and maintain. Spring is such framework which provides the ease of integration with a lot of different frameworks which makes it easy to develop an application using Spring. One such integration is integration of ...

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Arquillian Chameleon. Simplifying your Arquillian tests

Arquillian Chameleon was born to simplify the configuration of Arquillian tests. I am proud to announce that with version 1.0.0.CR2 we have not only simplified how to configure Arquillian tests but also how to write them. With this new release, three new simplifications have been added: You only need to use 1 (or at most 2 dependencies just in case you want to ...

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Liberty on Oracle Application Container Cloud

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In this blog post, I will describe how to deploy the CloudEE Duke application packaged in a Liberty über-jar to Oracle Application Container Cloud. The deployment artifact required for deployment in Oracle Application Container Cloud is a ZIP archive containing the application über-jar and a manifest file (manifest.json). The Liberty version of the manifest.json for CloudEE Duke is listed below. ...

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Understanding Java Buffer Pool

Understanding Java Buffer Pool The buffer pool space is located outside of the garbage collector-managed memory. It’s a way to allocate native off-heap memory. What’s the benefit of using buffer pools? To answer this question, let’s firstly learn what byte buffers are. Byte Buffer Non-Direct Buffer java.nio package comes with the ByteBuffer class. It allows us to allocate both direct and non-direct ...

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Payara Micro on Oracle Application Container Cloud

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In this blog post, I will describe how to deploy the CloudEE Duke application packaged in a Payara Micro über-jar to Oracle Application Container Cloud. The deployment artifact required for deployment in Oracle Application Container Cloud is a ZIP archive containing the application über-jar and a manifest file (manifest.json). The Payara Micro version of the manifest.json for CloudEE Duke is ...

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How a Service Mesh Can Help With Microservices Security

I see lots of customers moving to microservices, (whether they should or not is a topic for a different post), and in doing so they are attempting to solve some difficult organizational scaling problems. The details of going to microservice architecture often trades some old problems for new ones, however. Most of the customers I speak with have a strategy ...

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Learn Java from the Global Experts at Java With the Best

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Java With the Best Virtual Conference is your guide to Microservices, Java 9, Kubernetes and everything else Java! Tune in April 17th-18th to access 50+ live Java tech talks by industry-leaders from companies like Pivotal, RedHat, Microsoft, Oracle and Netflix. Our featured speakers include:   Reza Rahman (CapTech) – Java EE 8 and the Open Future of Java EE – ...

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