POSTIN
/bin/sh
/usr/sbin/update-alternatives --install /usr/share/java/servlet.jar servlet \ /usr/share/java/tomcat-servlet-3.1-api.jar 30000
POSTUN
/bin/sh
if [ "$1" = "0" ]; then /usr/sbin/update-alternatives --remove servlet \ /usr/share/java/tomcat-servlet-3.1-api.jar fi