We are running a system based on ServiceMix 4.4.1 and have run into an
issue deploying Apache Solr 3.5.0. When we deploy we get the following
error:
15:41:41,973 | ERROR | l Console Thread | WebXmlObserver
| 96 - org.ops4j.pax.web.pax-web-extender-war - 1.0.7 | Could not parse
web.xml
org.ops4j.lang.NullArgumentException: Servlet class is null.
After some research it is because in their web.xml they have this servlet
definition:
<servlet>
<servlet-name>ping</servlet-name>
<jsp-file>/admin/ping.jsp</jsp-file>
</servlet>
The error was due to it missing a servlet-class field (PAX assumed every
servlet should have a servlet-class). This is a known issue with PAX and is
documented with a bug [1] and is fixed in version 1.1.2. Are there any
plans to upgrade Karaf to support a newer version of Pax-web prior to 3.0?
I did see the issue that this is resolved for 3.0 [2]
Thanks,
Chris
[1] http://team.ops4j.org/browse/PAXWEB-328
[2] https://issues.apache.org/jira/browse/KARAF-903
