This page tries to install triggers with the demo database that comes with Apache Cocoon. Source for the triggers can be found in the eventcache block in your Cocoon source distribution: src/blocks/eventcache/java/org/apache/cocoon/samples/eventcache/ Installing org.apache.cocoon.samples.jms.HTTPTrigger for update on table "user".Installing org.apache.cocoon.samples.jms.HTTPTrigger for insert on table "user".Installing org.apache.cocoon.samples.jms.HTTPTrigger for delete on table "user". Uninstall triggers or go back to sample page.