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Java: The Checker Framework

One of the interesting tools I learned about at JavaOne 2012 is The Checker Framework. One of the Checker Framework’s web pages states that the Checker Framework ‘enhances Java’s type system to make it more powerful ...
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Quartz 2: Exploring different scheduling types

We often think of Cron when we want to schedule a job. Cron is very flexible in expressing an repeating occurance of an event/job in a very compact expression. However it’s not answer for everything, as I often see people ar ...
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Batoo JPA – 15x Faster Than The Leading JPA Provider

Introduction I loved the JPA 1.0 back in early 2000s. I started using it together with EJB 3.0 even before the stable releases. I loved it so much that I contributed bits and parts for JBoss 3.x implementations. Those were the day ...
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Java Temporary Caching API – Test-driving the Early Draft Review RI

It was known as ‘ The Neverending Story‘. The JSR kicked of 11 and a half year ago and passed the JSR Review Ballot on 06 Mar, 2001. If you ever wondered what it takes to get a fancy low JSR number in the hundreds: T ...
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Java to iOS Objective-C translation tool and runtime

If you work on a mobile app and you’re planning on developing it on Android and iOS, it may be less work for you to write it on Android first. Google recently released a new tool that makes porting Java code to iOS much easi ...
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Design Best practices using Factory Method Pattern

In the previous Design Pattern example we have explained about a flavor of Factory pattern which is commonly used nowadays. In this session we will understand a more advanced solution which had more abstraction. This pattern is ca ...
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Testing Quartz Cron expressions

Declaring complex Cron expressions is still giving me some headaches, especially when some more advanced constructs are used. After all, can you tell when the following trigger will fire '0 0 17 L-3W 6-9 ? *'? Since triggers are ...
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Abstract Factory Design Pattern Explained

Abstract Factory Design Pattern is another flavor of Factory Design Pattern. This pattern can be considered as a “super factory” or “Factory of factories”. The Abstract Factory design pattern (part of the Gang of Four) fal ...
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JavaOne 2012 Coverage

JavaOne, the annual Java extravaganza conference, took place from 30 September to 4 October in San Francisco. Numerous interesting presentations took place, proving once again a healthy Java ecosystem. Java Code Geeks could not ma ...
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Transition to Agile, Large Technical Debt, Small Project

Many months ago, Rebecca asked an interesting question about technical debt in projects. She asked, How to start when there’s a really big mess? In that case, small, just being a professional clean-up acts may not even make a de ...
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