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Using Google Guava Cache for local caching

Lot of times we would have to fetch the data from a database or another webservice or load it from file system. In cases where it involves a network call there would be inherent network ...
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JVM is down with “OutOfMemory” error – what should I do?

Amazing as it may seem, but this particular cry “From the Depths” is frequently displayed among the results of search requests regarding JVM settings. You have probably been faced ...
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FREE Programming books with the WCG Newsletter

Dear fellow geek, it is with great honor that we announce the launch of Web Code Geeks! This is our sister site, targeted to Web programming developers. Come on, admit it, there is ...
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Java 8 Streams API as Friendly ForkJoinPool Facade

One of features I love the most about Java 8 is the streams API. It finally eliminates pretty much all loops from the code and lets you write code that is so much more expressive and ...
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Key Concepts of Kubernetes

What is Kubernetes? Kubernetes is an open source orchestration system for Docker containers. It manages containerized applications across multiple hosts and provides basic mechanisms ...
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Improving lock performance in Java

After we introduced locked thread detection to Plumbr couple of months ago, we have started to receive queries similar to “hey, great, now I understand what is causing my performance ...
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Use copy paste programming!

Copy paste is bad We hate copy paste. Why? Because the result code is unmaintainable. I get a bug reported from QA, I analyze the code, look at logs, debug, drink a lot of coffee and ...
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Starting multiple JBoss A-MQ JVMs on the same machine

So I haven’t been blogging as much recently — just been really busy. But my New Year’s resolution is to blog a little more sharing some things I come across frequently, even if ...
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Where can I run EJBs ?

EJBs are built for more than just a Java EE application server. They can also execute in a Java EE Web Profile container or plain Java SE environment (Java SE ! yeah – Easy Java Beans ...
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My most useful IntelliJ IDEA keyboard shortcuts

Are you looking for ways to be more productive? It shouldn’t be a secret that performing actions using the keyboard instead of the mouse will save you time. If you think only about ...
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