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Debugging the dreaded “SEVERE: Error listenerStart” and “SEVERE: Error filterStart” tomcat error messages

Just a quick post that I hope might benefit others. If you have been developing web applications on tomcat for a while you have likely come the two error messages mentioned in the title: SEVERE: Error listenerStart and SEVERE: Error filterStart. SEVERE: Error listenerStart Occurs when an exception is thrown in the contextInitialized method of a ServletContextListener […]

Axon Framework 1.0, first release candidate available

The Axon Framework 1.0 release is closing in. After over a year of development, all features planned for the 1.0 version are included. With the latest added features, Axon has become a powerful framework that helps developers implementing applications using on a CQRS based architecture. Although the 1.0-rc1 version doesn’t add a lot of new […]

Mahout – Taste at Lucene Eurocon and Berlin Buzzwords

A little while ago, I was delighted to present two introductory Mahout – Taste talks, at Lucene Eurocon and Berlin Buzzwords. I received quite a lot of good feedback about the presentations and have been asked by a few attendees to post them. If you’re one of those attendees or you missed the presentation, you […]