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10 Productivity tips for software developers

After attending a few seminars on the topic of productivity and time management and reading a couple of books on the subject, I was introduced to some profound concepts and made some ...
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Builder Pattern: Good for code, great for tests

I’ve found the builder design pattern occasionally useful in code, but frequently useful in tests. This article is a quick summary of the pattern in general, followed by look at a ...
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Java EE 7 is final. Thoughts, Insights and further Pointers.

It took us a little less than three years to get the next Java EE version out the door. On April 16th this year the JCP EC voted on JSR 342 and approved it. This is kind of a success ...
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Mapping enums done right with @Convert in JPA 2.1

If you ever worked with Java enums in JPA you are definitely aware of their limitations and traps. Using enum as a property of your @Entity is often very good choice, however JPA prior ...
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So, what’s in a story?

I don’t know about you, but I always feel a little nervous when it comes to writing Agile stories. I often worry whether I’m the best person to write them and if I’ve ...
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Various ways to run Scala code

For running example in this tutorial, make sure that, you have latest Java distribution and Scala distribution installed on your machine and environment variable SCALA_HOME points ...
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A good, lazy way to write tests

Testing. I’ve been thinking a lot about testing recently. As part of code reviews I’ve done for various projects, I’ve seen thousands of lines of untested code. This is not just ...
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Java File Merging Goes Semantic

Talk to any programmer and ask him how a merge should be: “it should understand the code, parse it, and then merge based on the structure” – he’ll most likely say. And this ...
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JVM Performance Magic Tricks

HotSpot, the JVM we all know and love, is the brain in which our Java and Scala juices flow. Over the years, it’s been improved and tweaked by more than a handful of engineers, and ...
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Java EE CDI dependency disambiguation example

In this tutorial we shall show you how to avoid dependency disambiguation in CDI beans. In CDI we can achieve dependency injection for multiple implementations of an interface to different ...
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