Import-Package:\
  javax.servlet;javax.servlet.http;version="[2.6,4)",\
  javax.servlet.descriptor;version="[2.6,4)",\
  org.osgi.service.useradmin;resolution:=optional,\
  *

Provide-Capability:\
  osgi.service;objectClass=org.apache.sling.engine.SlingRequestProcessor,\
  osgi.service;objectClass=javax.servlet.ServletContext