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Ceylon: Planning the future of Ceylon 1.x

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With the release of Ceylon 1.1, we’ve reached a point where we need to do some serious thinking about what are our priorities for the development of Ceylon 1.1.5, 1.2, and beyond. I definitely don’t yet have a crystal clear vision of what is going to be in 1.2, so we’re also looking for community feedback on this. I do ...

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right-pad values with XSLT

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In this post an XSLT function that can be used to right-pad the value of an element with a chosen character to a certain length. No rocket science but this might become handy again so by putting it down here I don’t have to reinvent it later. The function itself looks like:               <xsl:stylesheet ...

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Java Tutorial Through Katas: Mars Rover

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A programming kata is an exercise which helps a programmer hone his skills through practice and repetition. This article is part of the series Java Tutorial Through Katas. The article assumes that the reader already has experience with Java, that he is familiar with the basics of unit tests and that he knows how to run them from his favorite ...

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Why Your IoT Product Strategy Needs to Include Open Source

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For the last two years, I have been talking about why open source will be critical to the success of the Internet of Things.  The current state of IoT/M2M is a lot of propriertary platforms and protocols. This can’t last and won’t win in the long term. This week during a webinar about the new Vorto IoT project from Bosch, ...

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What Happens When a Contractor Wants to Go Full time

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This just happened to me recently.  I have been looking for a job actively for the last six months.  One of the major questions I had were if I wanted to stay in a government contractor firm or go full time in a private company.  With contracting, one knows when is the last day.  On the other hand, I know ...

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The dreaded DefaultAbstractHelperImpl

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A while ago, we have published this fun game we like to call Spring API Bingo. It is a tribute and flattery to Spring’s immense creativeness when forming meaningful class names like FactoryAdvisorAdapterHandlerLoader ContainerPreTranslatorInfoDisposable BeanFactoryDestinationResolver LocalPersistenceManagerFactoryBean Two of the above classes actually exist. Can you spot them? If no, play Spring API Bingo! Clearly, the Spring API suffers from having… ...

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Poking around your REST application with a scriptable endpoint

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I love the fact that JDK comes with a ScriptEngine. It’s so flexible when you want to evaluate and troubleshoot your application that’s already deployed in an server environment. Add this REST endpoint into a Java EE app, and it will give you instant access to internal states of the app.             package myrestapp; import ...

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AssertJ > Fest > Hamcrest

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I have previously blogged about Hamcrest, and using its assertThat methods in preference to JUnit’s Assert. However, I quickly after discovered FEST Assertions, and happily switched to it. It provides the same improved test readability and improves failure messages as Hamcrest, but has the extra benefit of enabling IDE auto completion, rather than having to search through package and class docs to find the right matcher. Unfortunately, Fest seems to ...

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Legacy Code to Testable Code #3: Adding Setter Accessors

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This post is part of the “Legacy Code to Testable Code” series. In the series we’ll talk about making refactoring steps before writing tests for legacy code, and how they make our life easier. Adding accessors to private state data is an admission that either our design is wrong, or that we’re adding the accessors purely for testing. If that ...

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Data as a Service: JBoss Data Virtualization and Hadoop powering your Big Data solutions

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Red Hat and Cloudera, announce the formation of a strategic alliance. From JBoss perspective, the key objective of the alliance is to leverage big data enterprise-wide and not let Hadoop become another data silo. Cloudera combined with Red Hat JBoss Data Virtualization integrates Hadoop with existing information sources including data warehouses, SQL and NoSQL databases, enterprise and cloud applications, and ...

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