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Is Java’s String Class a God Object?

In October I wrote a blog entitled Top Trumps in God Objects where I talked about the discovery of an object I’d found with 167 disparate methods that linked this object with all other parts of the application and, as you’d ex ...
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Investigating the HashDoS issue

Nearly one month ago I have written some thoughts on how the HashDoS problem presented at the 28C3 or other code defects could perhaps be fixed temporarily without interaction of vendors. Now it’s time to deeper investigate ...
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Manipulating Java Class Files with ASM 4 – Part Two: Tree API

What is ASM tree API: ASM Tree API is the part of ASM that lets you create/modify the class in memory. The class is viewed as a tree of information. Like the whole class is an instance of ClassNode, which contain a list of FieldNo ...
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Manipulating Java Class Files with ASM 4 – Part One : Hello World!

What is ASM: ASM is an open source java library for manipulating java byte code. So it has the same purpose as Apache BCEL. As this article assumes that the reader has some knowledge of java class file format, it is advisable to r ...
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Virtualizing Your Java Applications: Best Practices (JavaOne 2011)

Justin Murray started his presentation ["Virtualizing Your Java Applications: Best Practices" (21860)] about five minutes early and began by saying that virtualization has arrived at the point where people no longer need to be con ...
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Patching Java at runtime

This article will slightly highlight how to fix issues with third party libs thatcan’t be circumvented are difficult to exclude/bypass/replaced simply provide no bugfixIn such cases solving the issue remains a challengig ...
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Apache Commons Lang StringUtils

So, thought it’d be good to talk about another Java library that I like. It’s been around for a while and is not perhaps the most exciting library, but it is very very useful. I probably make use of it daily. org.apach ...
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High performance libraries in Java

There is an increasing number of libraries which are described as high performance and have benchmarks to back that claim up. Here is a selection that I am aware of. Disruptor library - http://code.google.com/p/disruptor/ LMA ...
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What’s Cooking in Java 8 – Project Lambda

What is project lambda: Project lambda is the project to enable lambda expressions in java language syntax. Lambda expressions are major syntax in functional programming languages like lisp. Groovy would be the closest relative of ...
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What is behind System.nanoTime()?

In java world there is a very good perception about System.nanoTime(). There is always some guys who says that it is fast, reliable and, whenever possible, should be used for timings instead of System.currentTimemillis(). In overa ...
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