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A conversational guide for JDK8’s lambdas – a glossary of terms

Last advent…I wrote a post related to the new treats that JDK8 has for us. Most probably the feature that I am the most excited about are the lambdas. I have to admit that in ...
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What Open Source is (and isn’t) and why you should use it?

Open Source software plays a big role in the Java ecosystem (just think Maven, all the libraries in Maven Central, Gradle, OpenJDK, Ant, Ivy, Eclipse, Ant and so on). There is also ...
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(Part 1 of 3): Synopsis of articles & videos on Performance tuning, JVM, GC in Java, Mechanical Sympathy, et al

I have been contemplating for a number of months about reviewing a cache of articles and videos on topics like Performance tuning, JVM, GC in Java, Mechanical Sympathy, etc… ...
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Using Matchers in Tests

Gone are the days when we were forced to write way too many assertion lines in our testing code. There is a new sheriff in town: assertThat and his deputy: the matchers. Well, not that ...
java-interview-questions-answers

Waiting for the right moment – in integration testing

When you have to test multi-threaded programs, there is always the need to wait until the system arrives at a particular state, at which point the test can verify that the proper state ...
java-interview-questions-answers

Java EE 6 Web Profile. On the cloud. Easy.

Java SE is ok. Java EE is evil. That’s what I always used to think. Well, not anymore, now. Let me share my experience. Some weeks ago, I started thinking about porting a legacy ...
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Ensuring the order of execution for tasks

Sometimes it is necessary to impose certain order on the tasks in a threadpool. Issue 206 of the JavaSpecialists newsletter presents one such case: we have multiple connections from ...
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Under the JVM hood – Classloaders

Classloaders are a low level and often ignored aspect of the Java language among many developers. At ZeroTurnaround , our developers have had to live, breathe, eat, drink and almost ...
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Java – far sight look at JDK 8

The world is changing slowly but surely. After the changes that gave java a fresher look with JDK 7, the java community is looking forward to the rest of the improvements that will ...
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Hand and Finger Detection using JavaCV

This post is part of a series on Natural User Interfaces (NUIs) published by Dr. Andrew Davison and deals with detecting hands from a webcam video feed using JavaCV. Note: all the source ...
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