translate English to French: It is generally available within [TOMCAT_DIR]/common/lib/, with [TOMCAT_DIR] being the path under which Tomcat is installed. It may also be found under the name servlet-api.jar.
Elle se trouve généralement dans [TOMCAT_DIR]/common/lib/, si Tomcat est installé dans [TOMCAT_DIR], probablement sous le nom servlet-api.jar).