NullPointerException in GeronimoLog

Root application deploys successfully on tomcat running inside
Geronimo. When the server is stopped using ^c, GeronimoLog gives
NullPointerException -

11:49:09,900 INFO [Kernel] Kernel shutdown complete
11:49:09,900 INFO [Daemon] Server shutdown completed
11:49:10,010 INFO [StandardService] Stopping service Catalina
11:49:10,010 INFO [StandardHostDeployer] Removing web application at context pa
th
java.lang.NullPointerException
at org.apache.geronimo.kernel.log.GeronimoLog.error(GeronimoLog.java:106
)
at org.apache.catalina.startup.HostConfig.undeployApps(HostConfig.java:1
030)
at org.apache.catalina.startup.HostConfig.stop(HostConfig.java:1005)
.............