struts and threads

[Larry Jones]

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?

[Atul Prabhu]

Hi,

Calling methods on NumberFormat.*** dont need synchronisation as those methods dont share your resources.

Could you be more specific ?

Regards
Atul

[James Carman]

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).