If I have a struts webapp that in the action class method execute, it calls a class such as NumberFormat.aMethod. Do I have to worry about synchronizing and concurrency?
NumberFormat objects are not threadsafe. If you need to use a specific instance of NumberFormat, create a new one for each thread (as a local variable in your method somewhere, not an instance variable).
James Carman, President<br />Carman Consulting, Inc.
Don't get me started about those stupid light bulbs.