Eberhard Wolff has worked with Java since 1996, mainly in enterprise applications. He co-authored "Server Component Patterns" and "Java Persistenz Strategien" (German). He is also author of the first German book on Spring, which is also the first book to cover Spring 2.0. He regularly contributes to conferences like JAX, W-JAX, JAOO and writes articles for several journals. Eberhard is also a founding member of the Java Champions.