Hans has helped shape the server-side Java landscape as an
active member of several Java Community
Process (JCP) experts groups. He contributed to the servlet and
JSP specifications even before formal JCP expert groups existed,
and received special mentions for his contributions to the JSP 2.0,
JSP Standard Tag Libraries (JSTL) and the
JavaServer Faces (JSF)
specifications. Hans also helped get the development of
the open source Apache Tomcat
web container (used as a base for the servlet and JSP reference
implementation) started as one of the initial members of the Apache
Jakarta Project Management Committee (PMC).
After contributing a couple of chapters to a server-side Java book
published Wrox in 1999, Hans
started to write for O'Reilly &
Associates, with four books published so far:
In addition to his books, Hans is also a frequent writer of Java
articles for web sites and magazines and
an occasional speaker at Java events. You can tap into Hans's
vast experience and server-side Java expertise through the
ICanHelpSM
support and consulting service.
Hans has more than twenty years experience as a software
developer and project manager, designing and implementing systems
for everything from IBM mainframes, through DEC minicomputers, Unix
workstation and servers, to PCs, using many different
programming languages. He first came in contact with Object
Oriented concepts through Simula in 1985, and has continued to
explore this powerful technology in many projects since then
using Smalltalk, C/C++ and Java. He developed his first database
applications even before SQL was the standard database language,
and has worked with network based applications since the late
eighties. His experience with Java goes back to 1995, when the language
was first made public.
In 1997, Hans founded
Gefion Software,
a privately held company located in
Hermosa Beach, California, founded in 1997.
Gefion Software is one of the pioneers in the
server-side Java field and develops products that
simplify development of network based, platform
independent applications.
Hans has helped shape the server-side Java landscape as an