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Memory leaks and memory management in Java applications

One of the more prominent features of the Java platform is its automatic memory management. Many people translate this feature erroneously into there are no memory leaks in Java. However, ...
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Java EE 7 and WebSocket API for Java (JSR 356) with AngularJS on WildFly

This blog post describes the Java API for WebSocket Protocol (JSR 356) (which is one of four newest JSRs for the Java EE 7 platform) and provides a concrete application deployed on ...
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Determining Presence of Characters or Integers in String with Guava CharMatcher and Apache Commons Lang StringUtils

A recent Reddit post asked the question, “Is there a predefined method for checking if a variable value contains a particular character or integer?” That question-based ...
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Project Student: Webservice Server with Jersey

This is part of Project Student. Other posts are Webservice Client With Jersey, Business Layer and Persistence with Spring Data. The second layer of the RESTful webapp onion is the ...
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Introduction To JUnit Theories

Have you ever read a mathematical theory? It typically reads something like this: For all a, b > 0  the following is true: a+b > a and a+b > b Just typically the statements ...
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(Part 2 of 3): Synopsis of articles & videos on Performance tuning, JVM, GC in Java, Mechanical Sympathy, et al

This is a continuation of the previous post titled (Part 1 of 3): Synopsis of articles & videos on Performance tuning, JVM, GC in Java, Mechanical Sympathy, et al. Without any ...
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Adding Social Sign In to a Spring MVC Web Application: Unit Testing

Spring Social 1.0 has a spring-social-test module which provides support for testing Connect implementations and API bindings. This module was removed from Spring Social 1.1.0, and ...
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ArrayList vs LinkedList

I must confess the title of this post is a little bit catchy. I have recently read this blog post and this is a good summary of  discussions & debates about this subject. But this ...
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Gradle Command-Line Conveniences

In my post A First Look at Building Java with Gradle, I briefly mentioned using Gradle‘s “gradle tasks” command to see the available tasks for a particular Gradle ...
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Extending Guava caches to overflow to disk

Caching allows you to significantly speed up applications with only little effort. Two great cache implementations for the Java platform are the Guava caches and Ehcache. While Ehcache ...
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