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Beauty and strangeness of generics

Recently, I was preparing for my Oracle Certified Professional, Java SE 7 Programmer exam and I happened to encounter some rather strange-looking constructions in the realm of generics ...
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7 New Tools Java Developers Should Know

                       Get ready to lock and load through this quick overview of some of the newest most innovative, tools ...
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Listing and filtering directory contents in NIO.2

There hasn’t been much happening in the area of listing directory contents until the release of Java 7. But since NIO.2 introduced a new way to do this it might be worth it to cover ...
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Java 8 Optional: How to Use it

Java 8 comes with a new Optional type, similar to what is available in other languages. This post will go over how this new type is meant to be used, namely what is it’s main ...
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Java 8 Friday: Most Internal DSLs are Outdated

At Data Geekery, we love Java. And as we’re really into jOOQ’s fluent API and query DSL, we’re absolutely thrilled about what Java 8 will bring to our ecosystem. Java 8 Friday Every ...
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Simplifying trading system with Akka

My colleagues are developing a trading system that processes quite heavy stream of incoming transactions. Each transaction covers one Instrument (think bond or stock) and has some (now) ...
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Java 8 StampedLocks vs. ReadWriteLocks and Synchronized

Synchronized sections are kind of like visiting your parents-in-law. You want to be there as little as possible. When it comes to locking the rules are the same – you want to spend ...
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InterruptedException and interrupting threads explained

If InterruptedException wasn’t checked exception, probably no one would even notice it – which would actually prevent couple of bugs throughout these years. But since it ...
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Law of Demeter in Java – Principle of least Knowledge – Real life Example

Law of Demeter also known as principle of least knowledge is a coding principle, which says that a module should not know about the inner details of the objects it manipulates. If ...
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Using IntelliJ..for 2 weeks, so far so good

It’s been almost 2 weeks that I have completely switched over to IntelliJ as my main Java IDE at home and at work. So far so good, here are my  initial findings.        Migration: ...
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