Abort the build if there are some update warnings like:
--- Begin Error Reporting ---
Update succeeded, but left some directory entries empty.
Warning: No candidates found for directory entry META-INF:dir:33. It will be left empty!
Warning! No selection available for directory entry 'META-INF,?:dir:33' under 'java=1' in project 'am=ebbi_sop_0_1_0'.

Recommendation: Ensure that the projects to be updated are configured to update using templates.
--- End Error Reporting ---