There is a misspelling in HierarchyDynamicMBean. There is an error message: "Couls not add loggerMBean for ["+name+"]" It should be: "Could" Also, it does not send the exception to the logger. The exception here is very important.
Specifically, it's line 130 in the class source file.
Committed in rev 427758 (1.2 branch) and 427759 (trunk).