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The state of Scrum Mastering

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As most readers will have worked out, I’m not a fan of Scrum Masters. Partly this is because I find it a very mixed up roll to start with (see my “Hard Core Scrum” post), partly because the way individuals and organizations choose to interpret the role is so variable the title is meaningless but mostly because the Scrum Master ...

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Java 8 Optional is not just for replacing a null value

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Overview In Java 8, you can return an Optional instead of return null; as you might do in Java 7. This may or may not make a big difference depending on whether you tend to forget to check for null or whether you use static code analysis to check to nullalbe references. However, there is a more compelling case which ...

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7 JIRA Integrations to Optimize Your Java Development Workflow

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What are some of the best integrations available to optimize your JIRA workflow? I love finding ways to wring out some extra efficiency in my workflow. Watching those little automations and smooth processes brings a smile to my face. I know I’m not alone in occasionally having spent far more time getting that little boost to work correctly than it ...

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SWT Look and Feel: Customize FlatScrollBar Color and More

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Recently I introduced a custom slider control useful for improving the SWT look and feel of more subtle view layouts. Happily it seems the widget already found early adopters outside of the Code Affine world. Which led to some enhancements that will be presented in the following sections.                 SWT Look and Feel ...

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OptaPlanner – Scaling Vehicle Routing with Nearby Selection

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OptaPlanner 6.2 has made big step forward for the Vehicle Routing Problem (VRP), Traveling Salesman Problem (TSP) and similar use cases. The new feature nearby selection enables it to scale to bigger problems much more efficiently without sacrificing potential optimal solutions (which is common for inferior techniques). Let’s take a closer look at nearby selection with the Vehicle Routing Problem. ...

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Do you really understand @WebService ?

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SOAP web services are not cutting edge technology by any means – although it still has it’s place, REST based web services are offering tough competition. Anyway – this is definitely not a REST vs SOAP post ! I have observed a few instances where Java based SOAP web services have been used in an less than ideal manner to ...

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Testing Grunt Plugin From Grunt

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Writing tests for grunt plugin turned out to be less straightforward then expected. I needed to run multiple task configurations and wanted to invoke them all by typing grunt test in main directory. Grunt normally exits after first task failure. That makes it impossible to store multiple failure scenarios inside the main project gruntfile. Running them from there would require ...

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Grails Tutorial for Beginners – Criteria API

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This tutorial will show how to use Criteria API to search data from the database. Criteria is a powerful API and an elegant alternative to HQL. Introduction This previous post showed that HQL is a powerful way to perform complex queries. However, it is not very elegant if an HQL statement is not fixed and needs to be concatenated. For ...

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Everything You Need To Know About Default Methods

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So, default methods… yesterday’s news, right? Yes but after a year of use, a lot of facts accumulated and I wanted to gather them in one place for those developers who are just starting to use them. And maybe even the experienced ones can find a detail or two they didn’t know about yet. I will extend this post in ...

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You’re not going to do Microservices

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Seems like every 5 to 10 years our industry, especially in the Enterprise Integration, or enterprise application space, we get introduced to some new methodology or architectural style that’s the best since sliced bread and will make you 10x more productive and make your enterprise more agile, flexible, able to respond to change, and whatever else that CIOs are willing ...

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