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Posted to log4j-dev@logging.apache.org by Milind Rao <mi...@bellsouth.net> on 2004/02/24 07:51:44 UTC
SimpleDateFormat is not thread safe
I noticed that SimpleDateFormat is used as a static attribute in some classes. The format and parse
methods are not thread safe. I didn't go through the usage, but possibly this could cause problems in
multithreaded usage.
Regards
Milind
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Re: SimpleDateFormat is not thread safe
Posted by Milind Rao <mi...@bellsouth.net>.
>| I noticed that SimpleDateFormat is used as a static attribute in some
>| classes. The format and parse methods are not thread safe. I didn't go
>| through the usage, but possibly this could cause problems in
>| multithreaded usage.
>
>Does it use instance parameters that's modified within those methods??
Yes. calendar, pattern etc. Generally the pattern is the same. but calls to "format" and "parse" change the
calendar attribute.
Regards
Milind
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Re: SimpleDateFormat is not thread safe
Posted by Endre Stølsvik <En...@Stolsvik.com>.
On Tue, 24 Feb 2004, Milind Rao wrote:
| I noticed that SimpleDateFormat is used as a static attribute in some
| classes. The format and parse methods are not thread safe. I didn't go
| through the usage, but possibly this could cause problems in
| multithreaded usage.
Does it use instance parameters that's modified within those methods??
Endre
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