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How to install Oracle’s Java on Ubuntu the easy way

Developers on Ubuntu are accustomed to seeing at least two flavors of Java. OpenJDK is an open-source build of the Java runtime and compiler.  The Oracle JDK is built upon this, but ...
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Java Object Interning

Java stores the string contants appearing in the source code in a pool. In other words when you have a code like:                   String ...
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Clean SWT Listener Notifcations with SWTEventHelper

Writing tests for SWT based UIs often requires to notify widget listeners programmatically. Unfortunately the code to create, initialize and finally to trigger the event is a bit verbose ...
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Java 8 : What do developers think?

Since Java 8 releasement countdown is starting, Java developers seem certainly ready to get involved. According to a survey in Typesafe, 65% of developers who participated answered ...
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Java 8 Friday Goodies: Easy-as-Pie Local Caching

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. We have blogged ...
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What’s new in Java 8 – Date API

With the final release of Java 8 around the corner, one of the new features I’m excited about is the new Date API, a result of the work on JSR 310. While Lambda expressions are certainly ...
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Good use of Closures

Not long ago, in a blog post, I explained what Closure were in Groovy. This blog post will explain one good example of using them. I recently found myself having to write the same ...
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Java 8: Lambda Expressions vs Auto Closeable

If you used earlier versions of Neo4j via its Java API with Java 6 you probably have code similar to the following to ensure write operations happen within a transaction:                   public ...
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An open source JVM Sampling Profiler

It’s a well known deficiency of most existing sampling Java profilers that their collection of stack traces has to happen at a safe point. This is the case for profilers such ...
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Allocating memory for the JVM: a case study

This post is about a recent performance tuning exercise. As always, these start with vague statements about symptoms. This time the devil took the form of “The application is slow ...
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