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Spring 3.1: Caching and EhCache

If you look around the web for examples of using Spring 3.1’s built in caching then you’ll usually bump into Spring’s SimpleCacheManager, which the Guys at Spring say is “Useful for testing or simple ca ...
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JavaOne 2012: How Do Non-Blocking Data Structures Work?

I was a little surprised when I looked at my schedule for today and noted that all of the sessions I have currently planned to see today are in the Hilton. This became a little less surprising when I realized that about half of th ...
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Stuff I Learned from Grails Consulting

I don’t do much Grails consulting since I work for the Engineering group, and we have an excellent group of support engineers that usually work directly with clients. I do occasionally teach the 3-day Groovy and Grails course bu ...
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JavaOne 2012: JavaOne Technical Keynote

Mark Reinhold started off the JavaOne 2012 Technical Keynote. He said this year’s edition would be a little different because it would use largely the same example to illustrate various aspects of Java rather than standalone ...
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JavaOne 2012: Java Strategy Keynote and IBM Keynote

I had a rough start to JavaOne 2012 similar to that at JavaOne 2010. It took 70 minutes for the people handling the check-in to provide me with a JavaOne badge due to ‘computer and printer technical difficulties.’ Alth ...
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Google Guava v07 examples

We have something called Weekly Technology Workshops at TouK, that is, every Friday at 16:00 somebody has a presentation for everyone willing to come. We present stuff we learn and work on at home, but we also have a bulletin boar ...
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Business Agility Through DevOps and Continuous Delivery

The principles of Continuous Delivery and DevOps have been around for a few years. Developers and system administrators who follow the lean-startup movement are more than familiar with both. However, more often than not, implement ...
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Observer Design Pattern in Java

‘Don’t call us, we’ll call you’… that’s the Hollywood OO (Object Oriented) Principle and it’s exactly what the Observer pattern is about. In this post we’ll review this pattern and h ...
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Java Code Quality Tools – Overview

Recently, I had a chance to present the subject at the local IT community meetup. Here is the basic presentation: Java Code Quality Tools    and more meaningful mind map:But, I ...
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Spring Security using API Authentication

Background While there are many blog posts that detail how to use Spring Security, I often still find it challenging to configure when a problem domain lies outside of the standard LDAP or database authentication. In this post, I& ...
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