Just sharing my findings here.This happens only if the @property SRC annotation uses "intValue".It may simply be not supported at the Sling level with the Jcr Installer not supporting all types (https://issues.apache.org/jira/browse/SLING-2477) ?There are several options I could think of that I will...

Running into the same issue with Adobe Granite Workflow Service! (com.adobe.granite.workflow.core.WorkflowSessionFactory)Either "cq.workflow.job.retry" or "granite.workflow.inboxQuerySize" require to be set as integers but any attempt to use {Long} would end up with the same error described abovejav...