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This month we announce the opening of our sister site,, and continue with the Java 6 theme we started last month. Fasterj opens in style with a fabulous article on how to hotpatch a Java 6 application. The techniques needed to hotpatch, also allow you to investigate a running application in ways that were previously much more difficult to do - this is a must read article for anyone interested in advanced Java capabilities.

A note from this newsletter's sponsor

Wily Technology delivers what you need: Availability, Performance and Control
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software from Wily, the leader in enterprise application management

On top of that excellent hotpatching article, here at we do another of our focus newsletters, this time on the Java 6 troubleshooting guide. Each recent major release of Java has seen a troubleshooting guide supplied by Sun - and the Java 6 troubleshooting guide is far and away the best one of these we've seen. In fact it is so comprehensive that it's actually more useful for troubleshooting even if you are using a Java version prior to Java 6 - yes, we think the Java 6 guide is more useful for troubleshooting Java 5 applications than the Java 5 guide is!

In addition, although Javva the Hutt is on holiday, he's asked a colleague to stand in for him, and Javva's colleague (who prefers to remain anonymous under the pen name Hutt5) relates his Java 5 upgrade woes - ones of his own making, but probably quite useful reading for anyone else making the upgrade to Java 5.

A note from this newsletter's sponsor

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Now read on for the links and extracted tips to those fascinating articles, as well as our newly listed news and tools. And, of course we have extracted all the tips from that troubleshooting guide and the fasterj hotpatching as well as the Hutt5 article.


Java performance tuning related news.


Java performance tuning related tools.

A note from this newsletter's sponsor

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Learn how to effectively implement performance testing in development.
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Jack Shirazi

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