I am using the method described by Bedini et al. for defining a
datatype which is equivalent to XSD's simpleType/union using OWL's
equivalentClass mechanism- see recipe #2 in TABLE II in:
http://www-smis.inria.fr/PUBFILES/2011/2011%20-%20Transforming%20XML%20Schema%20to%20OWL%20Using%20Patterns.pdf
I'm using this pattern in the context of a property whose range is a
blank node defined by this pattern.
When I create an instance of a class, and then attempt to create a
value for the property using the "Add empty row" dialogue in the form
view, I get the following error:
===
An unexpected error has occured.
Reason:
java.lang.NullPointerException
at
org.topbraid.owl.model.OWLDataRange.getOnDatatype(OWLDataRange.java:
169)
at
org.topbraid.owl.model.OWLDataRange.getNamedSuperDataRange(OWLDataRange.java:
114)
at
org.topbraid.owl.model.OWLDataRange.getNamedSuperDataRange(OWLDataRange.java:
109)
at
org.topbraid.owl.model.OWLDataRange.getSystemBaseDatatype(OWLDataRange.java:
146)
at
org.topbraidcomposer.widgets.row.RowWidgetRow.createTypeLabel(RowWidgetRow.java:
251)
at ... lots more lines.
===
Any suggestions?
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