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Drool, Britannia? Is the UK Failing the Cloud?
By Roger Strukhoff
Richard Davies wrote: The UK has a good crop of technology pioneers in cloud computing - for example ElasticHosts, FlexiScale, Flexiant, OnApp - and also some strong government initiatives such as G-Cloud. We will have to see whether this kind of technical leadership converts into swift mass-market adoption or not.
Jan. 8, 2012 11:38 AM EST
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JavaOne 2008: Uncommon Java Bugs
Detecting them with FOSS tools

By: S G Ganesh
May. 16, 2008 11:45 AM
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Any large Java source base can have insidious and subtle bugs. Every experienced Java programmer knows that finding and fixing these bugs can be difficult and costly. Fortunately, there are a large number of free open source Java tools available that can be used to find and fix defects early in the development life cycle. In this article, we’ll look at a few examples of specific uncommon[1] or unusual defects that can happen in code and see how different Java static analysis tools detect them.

Testing
As software gets more complex and ubiquitous, it becomes more difficult to ensure high-quality code. One common method of finding bugs is testing. But testing can’t cover all paths and possibilities or enforce good programming practices. Expert knowledge in the form of manual code review by peers is one of the best ways to ensure good code quality. Code review is often used as a mandatory process step for improving the code and for finding problems early in the software life cycle.

Since testing and manual code review processes are resource-intensive, it would be helpful to use automated tools to review code. Static analysis tools help considerably in detecting the problems early in the software life cycle and help enhance the quality of the code significantly.

There are many high-quality Java tools available in the open source domain. While it’s true that Java programs don’t suffer from traditional C/C++ problems like memory issues and major portability issues, Java software does suffer quality problems like reliability, efficiency, maintainability, and security. A brief discussion on the benefits of using FOSS Java tools is given in the sidebar.

Before getting into the meat of the matter, let’s discuss why bugs happen. First, it’s important to recognize that everyone makes mistakes, even experts[2]. Second, compilers only check for syntax and semantic violations. Errors in language or API use, which manifest themselves as bugs, aren’t detected by compilers; this is left to static analysis tools and it’s important to use them to detect coding problems. Third, programmers and engineers are under constant pressure to “get-the-work-done” under tight schedules; working under “almost-impossible-to-meet” work schedules results in code that is often substandard and filled with bugs. Because of practical problems, most code developed in the real world has bugs and it’s worthwhile using static analysis tools to find them and fix them.

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Published May. 16, 2008— Reads 16,264
Copyright © 2008 SYS-CON Media, Inc. — All Rights Reserved.
Syndicated stories and blog feeds, all rights reserved by the author.
About S G Ganesh
S G Ganesh is a research engineer in Siemens (Corporate Technology), Bangalore. Prior to Siemens, he worked in Hewlett-Packard for around five years. His area of interest is programming languages and compilers. His latest book is "60 Tips on Object Oriented Programming" (ISBN-13 978-0-07-065670-3) published by Tata McGraw-Hill, New Delhi.

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