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Version Numbering Scheme – Yet another approach

Version numbering schemes are probably one of the few things we software engineers have more than sort algorithms. However, there’s always room for one more. While the classic approach of MAJOR.MINOR.PATCH (e.g. 1.8.2) works ...
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Making HTTP content compression work in netty 4

Netty is really a great framework providing all the things needed to build a high performance HTTP server. The nice thing is, that nearly everything comes out of the box and has just to be put together in the right way. And conten ...
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How to write one of the fastest expression evaluators in Java

Granted, the title is a bit of an attention grabber, but nevertheless true (You course you never trust a benchmark you didn’t fake yourself – but that’s another story). So last week I was looking for a small and ...
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How to kill Java with a Regular Expression

We recently stumbled upon a phenomen we absolutely weren’t aware of: You can kill any Java IDE and also any Java process with a simple regular expression… Back in university, I was taught that regular expressions, whic ...
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Generating Barcodes in PDFs with Flying-Saucer

Flying-Saucer is a nice library to generate PDF documents from within Java applications. Just generate a bunch of XHTML, throw it into the renderer and let it produce the desired document utilizing iText. When it comes to barcodes ...
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Launching and Debugging Tomcat from Eclipse without complex plugins

Modern IDEs like Eclipse provide various Plugins to ease web developement. However, I believe that starting Tomcat as “normal” Java application still provides the best debugging experience. Most of the time, this is be ...
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