XmlBeans generates incorrect code for complex types w/simple content and attributes with use="prohibited"

Errors like the following are output by javac when compiling the generated classes:

src\net\opengis\swe\impl\SoftTypedMeasureInt
ervalTypeImpl.java:14:
net.opengis.swe.impl.SoftTypedMeasureIntervalTypeImpl is not abstract and does not override abstract method unsetCount() in net.opengis.swe.SoftTypedMeasureOrNullListType
public class SoftTypedMeasureIntervalTypeImpl extends org.apache.xmlbeans.impl.values.XmlListImpl implements net.opengis.swe.SoftTypedMeasureIntervalType