I encountered issue JAXB-1027 today and took a look through the source code for 2.2.11. It looks like it works if we were to not consider it a leaf node. This would mean that com.sun.xml.bind.v2.runtime.property.PropertyFactory.create line 124 would need
to return false. This would allow line 126 to find propImpls which is SingleReferenceNodeProperty.class.
Alternatively, we could add SingleReferenceNodeProperty to propImpls.