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Julian Jewel

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java.lang.IncompatibleClassChangeError: class org.hibernate.cfg.ExtendedMappings has interface org.hibernate.cfg.Mappings as super class

We had this new error from Hiberante – “java.lang.IncompatibleClassChangeError: class org.hibernate.cfg.ExtendedMappings has interface org.hibernate.cfg.Mappings as super class” – This is due to using the older hibernate entity manager/annotations libraries that were around when we upgraded to the newer 3.5.x version of hibernate. Hibernate includes the entity manager and annotations as part of the hibernate core library.

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Julian is one of the country's foremost experts in software design, process, and construction. He regularly speaks at major technical conferences. Not only is Julian an expert architect and programmer, he excels at passing his knowledge on to others as both a consultant and educator.

Having worked as a CTO, Julian is also in a unique position to assess and improve both your software and your software-development process. If you're a nontechnical CEO, he can help you bootstrap your startup or analyze (and help you improve) your existing software organization. He regularly does one-on-one CEO and CTO-coaching sessions, and can train individual teams and entire departments on Object-Oriented design/UML, Agile process, and languages.