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Running out of memory without the OutOfMemoryError

This is actually a reincarnation of a post originally posted in ~2010. The flashback occurred when listening to our engineers cursing at a particularly nasty bug raising its head yesterday. ...
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When and how to use a ThreadLocal

As our readers might already have guessed, I deal with memory leaks on a daily basis. A particular type of the OutOfMemoryError messages has recently started catching my attention – ...
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How to use Asynchronous Servlets to improve performance

This post is going to describe a performance optimization technique applicable to a common problem related to modern webapps. Applications nowadays are no longer just passively waiting ...
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Six Java features to stay away from

I have spent countless hours troubleshooting different applications. Via the experience I can draw a conclusion about several Java SE features/APIs which most of the developers should ...
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Why we dropped Eclipse in favour of IntelliJ

As a background – all of us in Plumbr have all been using Eclipse for as long as we can possibly remember. But when I just looked around in the office I saw our whole team being converted ...
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On a quest for missing stacktraces

One comment to our recent blog post brought back some memories about a specific experience. The type of experience I wish I had not experienced. Long time before we founded Plumbr I ...
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Throwing Exceptions – slow and ugly

This post is about a historical experience in conjunction with recently applied performance optimization techniques. Years ago I was swearing at a particular application where I had ...
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Why is your software aging?

I recently stumbled upon a term software aging. My first thoughts on the subject were not too positive, especially after reading the Wikipedia definition. Just Another Buzzword was ...
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Understanding the OutOfMemoryError

Whenever you find yourself staring a stacktrace with OutOfMemoryError in it, it should all be crystal clear. The program has got no more elbow room and is dying just because of lack ...
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Reducing memory usage with String.intern()

Every now and then you have a dying production application at hand. And you know you need to patch it as fast as possible. So have we, and thought it would be interesting to share one ...
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