Review findbugs reports (see parent task), deal with issues in:

1) AS cluster module
2) JBCLUSTER project libraries
3) JBC
4) JGroups (notify JGroups team)
5) Cluster stuff in tomcat module
6) Cluster stuff in profile service
7) ServiceBindingManager
8) EJB3 clustered SFSB caching
9) Clustered Hibernate 2nd Level Cache

A quick scan didn't show a whole lot, so this shouldn't be too bad.