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A JUnit Rule to Conditionally Ignore Tests

I always believed that using @Ignore to deactivate tests is a bad idea. Except, maybe as one way to put tests that fail intermittently into quarantine to attend to them later (as Martin ...
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Analyze package dependencies with structure101

One key to a stable application is a well-structured codebase. We know that we should build as many black boxes as possible, because as soon as one black box is finished, we no longer ...
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Native Java Packaging with NetBeans 7.4

One of the new features of NetBeans 7.4 that made the “NetBeans 74 NewAndNoteworthy” page is “Native Packaging,” which is described on that page as “JavaSE ...
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3 ways of handling exceptions in JUnit. Which one to choose?

In JUnit there are 3 popular ways of handling exceptions in your test code:try-catch idiom With JUnit rule With annotationWhich one should we use and when?try-catch idiom This ...
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Java: Schedule a job to run on a time interval

Recently I’ve spent some time building a set of tests around rolling upgrades between Neo4j versions and as part of that I wanted to log the state of the cluster as the upgrade was ...
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A MindMap for Java Developer Interviews

Over the years I have been a panelist in many of the interviews for Java Developers. I have previously written a post titled Top 7 tips for succeeding in a technical interview for ...
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Java VM – Beware of the YoungGen space

As you may have seen from our previous performance oriented articles, a healthy JVM is one of the most important goals to achieve for optimal application performance and stability. ...
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What Garbage Collector are you using?

Our research labs are humming at full speed. With the recent injection of capital, we can only warrant that the pace at which we keep innovating will only increase. Part of the research ...
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Using serialization to find dirty fields in an object

Say you are developing a framework to auto-save objects into a database. You need to detect changes made between two saves, so that only modified fields are saved. How to detect dirty ...
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Why we shouldn’t use more threads than we need to

Overview There is a common argument that because we have lots of cores, and will have even more in the future we have to use them.  We just we need to find the best ways to use them ...
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