Jetty is getting closer to being updated (to version 8) for Fedora. The Eclipse package intends on using this newer version so as to not have to bring in tomcat6 as a dependency. To successfully build Eclipse with these components, tomcat-servlet-3.0-api.jar (javax.servlet) needs to export the javax.servlet.descriptor subpackage. A proposed patch is attached.
Created attachment 555599 [details] Patch
tomcat-7.0.25-2.fc16 has been submitted as an update for Fedora 16. https://admin.fedoraproject.org/updates/tomcat-7.0.25-2.fc16
Package tomcat-7.0.25-2.fc16: * should fix your issue, * was pushed to the Fedora 16 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing tomcat-7.0.25-2.fc16' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-0805/tomcat-7.0.25-2.fc16 then log in and leave karma (feedback).
tomcat-7.0.25-2.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.