salve eseguo

[root@localhost ~]# /etc/init.d/tomcat5 restart

e ricevo

Stopping tomcat5: [ OK ]
Starting tomcat5: /usr/bin/rebuild-jar-repository: error: Could not find javamail Java extension for this JVM
/usr/bin/rebuild-jar-repository: error: Some detected jars were not found for this jvm
[ OK ]

Utilizzo centos 5 come posso fare x eliminare il problema?
ho scaricato le java mail come le installo? Grazie