The following should sum it up:

com.opensymphony.module.propertyset.PropertyImplementationException: Unable to esablish a connection with the database. (SAP DBTech JDBC: Cannot connect to jdbc:sapdb://localhost/jira-ofbiz [Restart required].)

If you add a database connection string but the database has not been created yet then you cannot run the wizard to create it. If the schema script is not included then you cannot create the db prior to connecting the with the wizard.

EntityEngine.Xml was modified using the following prior to ant build:

Default commented out and this was added per your docs:

<transaction-factory class="org.ofbiz.core.entity.transaction.TyrexFactory" />

Datasource added and default commented out: (user & pass removed here)

<datasource name="defaultDS"
field-type-name="sapdb"
helper-class="org.ofbiz.core.entity.GenericHelperDAO"
check-on-start="true" use-foreign-keys="true"
use-foreign-key-indices="true" check-fks-on-start="true"
check-fk-indices-on-start="true" add-missing-on-start="true">
<inline-jdbc jdbc-driver="com.sap.dbtech.jdbc.DriverSapDB"
jdbc-uri="jdbc:sapdb://localhost/jira-ofbiz"
jdbc-username="***" jdbc-password="***"
isolation-level="Serializable"/>
</datasource>