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Java EE 7 Community Survey Results!

Work on Java EE 7 presses on under JSR 342. Things are shaping up nicely and Java EE 7 is now in the Early Draft Review stage. In beginning of November Oracle posted a little community ...
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Increasing heap size – beware of the Cobra Effect

The term ‘Cobra effect’ stems from an anecdote set at the time of British rule of colonial India. The British government was concerned about the number of venomous cobra snakes. ...
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How to Create Extensible Java Applications

Many applications benefit from being open to extension. This post describes two ways to implement such extensibility in Java. Extensible Applications Extensible applications are applications ...
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Of Hacking Enums and Modifying ‘final static’ Fields

In this newsletter, originally published in The Java Specialists’ Newsletter Issue 161 we examine how it is possible to create enum instances in the Sun JDK, by using the reflection ...
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Do you get Just-in-time compilation?

Remember the last time when you were laughed at by C-developers? That the Java is so slooooow that they would never even consider using a language like this? In many ways, the concept ...
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Decorate with decorator design pattern

Decorator pattern is one of the widely used structural patterns. This pattern dynamically changes the functionality of an object at runtime without impacting the existing functionality ...
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Changes to String.substring in Java 7

It is common knowledge that Java optimizes the substring operation for the case where you generate a lot of substrings of the same source string. It does this by using the (value, offset, ...
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Dynamic hot-swap environment inside Java with atomic updates

One could argue that the above title can be shortened as OSGi, and I want to discard that thought process at the very beginning. No offense to OSGi, it is a great specification which ...
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Devoxx 2012: Java 8 Lambda and Parallelism, Part 1

Overview Devoxx, the biggest vendor-independent Java conference in the world, took place in Atwerp, Belgium on 12 – 16 November. This year it was bigger yet, reaching 3400 attendees ...
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Composing Java annotations

The allowed attribute types of a Java annotations are deliberately very restrictive, however some clean composite annotation types are possible with the allowed types.                     Consider ...
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