Convert noisy NSStack debug message to trace, which in our log4j config will still go to debug, but other loggers can deal with as they see fit.
Convert noisy NSStack debug message to trace, which in our log4j config will still
go to debug, but other loggers can deal with as they see fit.


git-svn-id: 8699849808240b02471d01f5aaa03ec0c1cb68ee@246678 13f79535-47bb-0310-9956-ffa450edef68

apache/axis1-java,apache/axis1-java,apache/axis1-java,apache/axis1-java