Some time ago I’ve spent a lot of time trying to figure out how one can share
common parts of code in two Web-services running in Apache Tomcat. What I
wanted is to move several packages to a separate Eclipse project and refer to it
from several other projects. Somewhere on the Web a nice list of options to
achieve this was found. All (or almost all) of them were connected with the
Classpath settings pane in the project options. But unfortunately no matter
what Classpath options I set, it didn’t work. I’ve also tried exporting
project with the common functionallity to a jar file and linking to it from
other project. That didn’t work either, that jar file wasn’t deployed to Tomcat
server.
So after spending a lot time on this, I finally made it work and forget about
the issue. I just investigated what I did to make it work and decided to
document it. The answer is simple as “just put jar file to the lib directory
of Tomcat”. And that’s it, don’t forget to regenerate it after making changes
in shared code.