[xwiki-users] java.sql.SQLException PoolablePreparedStatment

I have a new instance of XWiki running on Tomcat 5.5 / Mysql Server 5.1. The wiki appears to be running fine, no errors being shown to the user. However, in the tomcat log I'm getting a bunch of java.sql.SQLExceptions like the following: java.sql.SQLException: org.apache.commons.dbcp.PoolablePreparedStatement with address: "com.mysql.jdbc.PreparedStatement@1f07f48: insert into activitystream_events (ase_requestid, ase_stream, ase_date, ase_priority, ase_type, ase_application, ase_user, ase_wiki, ase_space, ase_page, ase_url, ase_title, ase_body, ase_version, ase_param1, ase_param2, ase_param3, ase_param4, ase_param5, ase_eventid) values (** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **, ** NOT SPECIFIED **)" is closed. and : java.sql.SQLException: org.apache.commons.dbcp.PoolablePreparedStatement with address: "com.mysql.jdbc.PreparedStatement@cbe525: update xwikiproperties set XWP_CLASSTYPE=** NOT SPECIFIED ** where XWP_ID=** NOT SPECIFIED ** and XWP_NAME=** NOT SPECIFIED **" is closed. I looked around the archive and didn't see anything. I'm concerned that this is important even though it doesn't seem to be affecting the usability of the XWiki. Can anyone tell me what the deal is? Thanks, Lenny