I think that there must be more information that you can display.
Although Tomcat is included in JBoss, there are no JBoss components in Tomcat, so any JBoss-related message you get from Tomcat is an indication that something's wrong with a webapp that's including JBoss code.
If you are actually running a JBoss server, we do have a separate forum for that.
Customer surveys are for companies who didn't pay proper attention to begin with.
subject: Syntax error on token "}", delete this token