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Remote JMS with WildFly Swarm


I’m blogging about WildFly swarm again? Short version is: I needed a test for remote JMS access and refused to setup something complex like a complete application server. The idea was to have a simple WildFly Swarm application which has a queue and a topic configured. Both should be accessible remotely from a standalone Java application. While the topic receives ...

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Functional FizzBuzz Kata in Java


A while ago I solved the FizzBuzz kata using Java 8 streams and lambdas. While the end result was functional, the intermediate steps were not. Surely I can do better. As always, let’s start with a failing test: package; + + import static org.junit.Assert.assertEquals; + + import org.junit.Test; + + + public class WhenFunctionallyFuzzingAndBuzzing { + + private final FizzBuzzer ...

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Big Data SQL: Overview of Apache Drill Query Execution Capabilities – Whiteboard Walkthrough


In this week’s Whiteboard Walkthrough, Neeraja Rentachintala, Senior Director of Product Management at MapR Technologies, gives an overview of how open source Apache Drill achieves low latency for interactive SQL queries carried out on large datasets. With Drill, you can use familiar ANSI SQL BI tools, such as Tableau or MicroStrategy, plus do exploration directly on big data. For additional ...

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Building 3D Simulations In Unity3D, Part 3


Welcome to the final post in this three-part blog series on Unity 3D. In this series, we are creating a simple 3D game in Unity3D with rich controls. Part one covered how to set up Unity3D and part two taught you how to control Unity3D using C#. In this final post of this series, we are going to delve into ...

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Suppress FindBugs Warnings in a Java and Spring Boot Web Application using Gradle


How to Suppress FindBugs Warnings using Annotations in a +Spring Boot and +Java Application If your build is breaking because of a FindBugs issue and it is a false-positive or you are unable to resolve the issue because of other considerations, you can add an Annotation to ignore the Findbugs warning. Update your Gradle Dependencies You will want to add the following compile time ...

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Security management in jBPM & Drools workbenches


The jBPM 7 release will include an integrated security management solution to allow administrator users to manage the application’s users, groups and permissions using an intuitive and friendly user interface. Once released, users will be able to configure who can access the different resources and features available in the workbench. In that regards, a first implementation of the user & ...

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Resizing the HashMap: dangers ahead


I recently stumbled upon a bug caused by improper usage of java.util.HashMap from multiple threads. The bug was an excellent example of the leaking abstractions. Only the knowledge of the implementation-level details of the data structures helped me solve the issue at hand. So I hope that sharing the problem I faced will encourage some of our readers to familiarize ...

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Ceylon: Ceylon Bootstrap


Ceylon 1.2.2 was released back in March, and at the time it shipped with a new feature that did not make a lot of noise, but I think it’s worth explaining it a bit more in this blog. In general Ceylon developers have to download the Ceylon distribution in order to compile Ceylon code, and so do Ceylon users. When ...

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