List/Grid Yearly Archives: 2012

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When using direct memory can be faster

Overview Using direct memory is no guarantee of improving performance.  Given it adds complexity, it should be avoided unless you have a compelling reason to use it. This excellent ...
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When Premature Optimization Isn’t

Earlier this month, I decided I wanted to write a post on not all optimization being premature optimization after hearing more than one developer use this mantra as an excuse for not ...
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Forcing Tomcat to log through SLF4J/Logback

So you have your executable web application in JAR with bundled Tomcat (make sure to read that one first). However there are these annoying Tomcat logs at the beginning, independent ...
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Event streaming with MongoDB

MongoDB is a really great “NoSQL” database, with a very wide range of applications. In one project that we are developing at SoftwareMill, we used it as a replicated event storage, ...
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Not All Optimization Is Premature

The other day the reddit community discarded my advice for switching from text-based to binary serialization formats. It was labeled “premature optimization”. I’ll zoom out of ...
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How many Java developers are there in the world?

Oracle says it’s 9,000,000. Wikipedia claims it’s 10,000,000. And the guys from NumberOf.net seem to be the most precise – they know that there are exactly 9,007,346 Java developers ...
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Interview Prep For Geeks

Failing an interview due to a lack of qualifications is forgivable, but it is tragic when highly qualified candidates do not get an offer due to being unprepared. With the amount of ...
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Why Scrum Won

In the 1990s and early 2000s a number of different lightweight ‘agile’ development methods sprung up. Today a few shops use Extreme Programming, including most notably ThoughtWorks ...
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Type-safe Empty Collections in Java

I have blogged before on the utility of the Java Collections class and have specifically blogged on Using Collections Methods emptyList(), emptyMap(), and emptySet(). In this post, ...
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Wasting time by saving memory

You might say that at my company, the hard ware is 10x more expensive, but it also likely you time is costing the company about the same more. In any case, this article attempts to ...
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