Hi,
I'm currently trying to use Abdera 0.4.0 for generating Atom feeds
from an Atlassian Confluence plugin. I suspect there are some
classloader issues when using Abdera in this scenario, because if I
use the following typical idiom:
abdera = new Abdera();
Feed feed = abdera.newFeed();
I get an NPE due to the fact that abdera.getFactory() returns null.
Apparently the ServiceUtils class is not finding classes to load. I
tried working around the issue by using my own version of
AbderaConfiguration that "news" FOMFactory, FOMParser, etc. instead
of relying on ServiceUtils (which confirms, by the way, that the
various dependencies like Axiom are in the classpath), but I got
stuck again with the following trace:
javax.servlet.ServletException: Servlet execution threw an exception
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
(ApplicationFilterChain.java:292)
...
caused by: java.lang.ExceptionInInitializerError
at org.apache.axiom.om.impl.llom.OMNodeImpl.serialize
(OMNodeImpl.java:408)
...
caused by: java.lang.IllegalStateException: No valid ObjectCreator
found.
at org.apache.axiom.om.util.StAXUtils$Pool.(StAXUtils.java:64)
Has anyone ever tried doing something similar or fallen into the same
kind of problems? For the record, this is using Abdera 0.4.0 in
Confluence 2.8, JDK 1.5 on OS X Tiger.
Thanks in Advance
Ugo
--
Ugo Cei
Sourcesense - making sense of Open Source: http://www.sourcesense.com
