I am also finding it.
I can successfully install jbpm on mysql using jbpm-installer. However, we need to install it on oracle.
I create an accounts jbpm5/jbpm5 and task/ task on oracle and two are at the same schema.
I try to refer to the web site: http://docs.jboss.org/jbpm/v5.3/userguide/ch.installer.html#d0e872
and do modification as my attachment: jbpm-installer.rar.
1. c:\jbpm-installer\ant clean.demo
2. ant install.demo.db
3. ant start.demo.db
It has the following error: