Can't Start OpenNMS

I'm having troubles getting opennms to start.

Fedora 5
Kerenl = 2.6.15-1.2054
Java = j2sdk1.4.2_13 /usr/java/j2sdk1.4.2_13
Tomcat = 4.1.18 /etc/tomcat4/tomcat.conf
Postgresql = 8.1.3
opennms = 1.2.9 /opt/Opennms

The installation of the webapps takes an extremely long time.  See next section:

[root@nagios OpenNMS]# bin/install -y -w /var/tomcat4/webapps -W
/var/tomcat4/server/lib
==============================================================================
OpenNMS Installer Version $Id: Installer.java 3056 2006-03-26 19:39:16Z
djgregor $
==============================================================================

Configures PostgreSQL tables, users, and other miscellaneous settings.

* using 'opennms' as the PostgreSQL user for OpenNMS
* using 'opennms' as the PostgreSQL password for OpenNMS
* using 'opennms' as the PostgreSQL database name for OpenNMS
- using Top-level web application directory... /var/tomcat4/webapps
- using Tomcat server library directory... /var/tomcat4/server/lib
- using OpenNMS webapps directory... /opt/OpenNMS/webapps
- Checking for old opennms webapp directory in
/var/tomcat4/webapps/opennms... OK
- Checking for old opennms context in
/var/tomcat4/webapps/../conf/server.xml... OK

*****---  The system hangs here for a real long time (5 minutes +) when
installing --*****

- Install OpenNMS webapp...
  - /var/tomcat4/webapps/opennms.xml exists, removing... REMOVED
  - creating link to /var/tomcat4/webapps/opennms.xml... DONE
  - /var/tomcat4/server/lib/log4j.jar exists, removing... REMOVED
  - creating link to /var/tomcat4/server/lib/log4j.jar... DONE
  - /var/tomcat4/server/lib/castor-0.9.3.9.jar exists, removing... REMOVED
  - creating link to /var/tomcat4/server/lib/castor-0.9.3.9.jar... DONE
  - /var/tomcat4/server/lib/castor-0.9.3.9-xml.jar exists, removing...
REMOVED
  - creating link to /var/tomcat4/server/lib/castor-0.9.3.9-xml.jar... DONE
  - /var/tomcat4/server/lib/opennms_core.jar exists, removing... REMOVED
  - creating link to /var/tomcat4/server/lib/opennms_core.jar... DONE
  - /var/tomcat4/server/lib/opennms_services.jar exists, removing... REMOVED
  - creating link to /var/tomcat4/server/lib/opennms_services.jar... DONE
  - /var/tomcat4/server/lib/opennms_web.jar exists, removing... REMOVED
  - creating link to /var/tomcat4/server/lib/opennms_web.jar... DONE
- Installing OpenNMS webapp... DONE

Installer completed successfully!

When I try to start openNMS here is what I get:
[root@nagios OpenNMS]# /etc/init.d/opennms -v start Starting OpenNMS:
Started OpenNMS, but it stopped running: check output.log
                                                           [FAILED]
[root@nagios OpenNMS]#


Heres the last entry in the output.log:

Mon Nov 20 14:06:14 EST 2006
begin ulimit settings:
core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
max nice                        (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 12260
max locked memory       (kbytes, -l) 32
max memory size         (kbytes, -m) unlimited
open files                      (-n) 10240
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
max rt priority                 (-r) 0
stack size              (kbytes, -s) 8192
cpu time               (seconds, -t) unlimited
max user processes              (-u) 12260
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited
file locks                      (-x) unlimited
end ulimit settings
Executing command: /opt/OpenNMS/bin/runjava -r  -- -classpath
/opt/OpenNMS/etc:/opt/OpenNMS/lib/activation.jar:/opt/OpenNMS/lib/avalon-framework-cvs-20020806.jar:/opt/OpenNMS/lib/batik.jar:/opt/OpenNMS/lib/bsf220.jar:/opt/OpenNMS/lib/bsh-1.2b7.jar:/opt/OpenNMS/lib/c3p0-0.9.0-pre5.jar:/opt/OpenNMS/lib/castor-0.9.3.9.jar:/opt/OpenNMS/lib/castor-0.9.3.9-xml.jar:/opt/OpenNMS/lib/catalina.jar:/opt/OpenNMS/lib/commons-jxpath-1.1.jar:/opt/OpenNMS/lib/fop0205.jar:/opt/OpenNMS/lib/getopt.jar:/opt/OpenNMS/lib/hsqldb.jar:/opt/OpenNMS/lib/imap.jar:/opt/OpenNMS/lib/jcifs.jar:/opt/OpenNMS/lib/jdhcp.jar:/opt/OpenNMS/lib/jimi100.jar:/opt/OpenNMS/lib/jmta.jar:/opt/OpenNMS/lib/jradius-client.jar:/opt/OpenNMS/lib/jrobin-1.4.0.jar:/opt/OpenNMS/lib/jta101.jar:/opt/OpenNMS/lib/ldap.jar:/opt/OpenNMS/lib/log4j.jar:/opt/OpenNMS/lib/logkit-1.0.jar:/opt/OpenNMS/lib/mailapi.jar:/opt/OpenNMS/lib/mx4j-3.0.1.jar:/opt/OpenNMS/lib/mx4j-remote-3.0.1.jar:/opt/OpenNMS/lib/mx4j-tools-
3.0.1.jar:/opt/OpenNMS/lib/opennms_common.jar:/opt/OpenNMS/lib/opennms_core.jar:/opt/OpenNMS/lib/opennms_install.jar:/opt/OpenNMS/lib/opennms_joesnmp.jar:/opt/OpenNMS/lib/opennms_services.jar:/opt/OpenNMS/lib/opennms_web.jar:/opt/OpenNMS/lib/oro204.jar:/opt/OpenNMS/lib/pg74.215.jdbc3.jar:/opt/OpenNMS/lib/pop3.jar:/opt/OpenNMS/lib/regexp120.jar:/opt/OpenNMS/lib/servlet.jar:/opt/OpenNMS/lib/smack.jar:/opt/OpenNMS/lib/smackx.jar:/opt/OpenNMS/lib/smtp.jar:/opt/OpenNMS/lib/w3c.jar:/opt/OpenNMS/lib/xalan122.jar:/opt/OpenNMS/lib/xalan231.jar:/opt/OpenNMS/lib/xerces201.jar:/opt/OpenNMS/lib/xml-apis231.jar:/opt/OpenNMS/lib/xmlrpc-1.2-b1.jar
  -DOPENNMSLAUNCH -Dopennms.home=/opt/OpenNMS
-Djcifs.properties=/opt/OpenNMS/etc/jcifs.properties -Xmx256m -verbose:gc
org.opennms.netmgt.vmmgr.Manager
Could not initialize IcmpSocket: null
java.lang.NoSuchFieldError
   <<No stacktrace available>>
[root@nagios logs]#


Any ideas?