-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Chema,
On 11/23/11 1:10 PM, Chema wrote: >>> The string of the date format is constant. However the >>> SimpleDateFormat >> class is not threadsafe, so you will hit intermittant issues when >> sharing across threads > > Do you mean that read operations (getters) in not-threadsafe > objects are not an atomic operations and could retrieve "dirty" > values cause sharing across threads? As Chuck says, that depends upon the class. In the case of SimpleDateFormat, there is a Calendar object used internally with no synchronization, so multiple threads cannot safely use java.text.SimpleDateFormat without fear of mass confusion. If you didn't know that, now you do: don't use a shared SimpleDateFormat in a threaded environment without any kind of protection. - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk7PqpQACgkQ9CaO5/Lv0PDragCgrluaNuJ1Xs3tMGvpHauEts7d VhYAn1vyKtmd/pT1FGzbibXJwlGfvI56 =oo7Q -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
