When trying to get a new Message containing a number in the argument list the NullPointer is happening because of the newly create message does not get the C Locale for some reason.

14:12:59,547 TP-Processor11 ERROR org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/titan].[website] - Servlet.service() for servlet website threw exception
java.lang.NullPointerException
at java.util.Hashtable.get(Hashtable.java:336)
at java.text.NumberFormat.getInstance(NumberFormat.java:663)
at java.text.NumberFormat.getInstance(NumberFormat.java:352)
at java.text.MessageFormat.subformat(MessageFormat.java:1228)
at java.text.MessageFormat.format(MessageFormat.java:828)
at java.text.Format.format(Format.java:133)
at org.riotfamily.dbmsgsrc.support.DbMessageSource.getMessageFromParent(DbMessageSource.java:68)
at org.riotfamily.dbmsgsrc.support.AbstractMessageSource.getMessageInternal(AbstractMessageSource.java:208)
at org.riotfamily.dbmsgsrc.support.AbstractMessageSource.getMessage(AbstractMessageSource.java:140)