-79852 UDT field name or field type was not set in UDTMetaData

Explanation
Your application called UDTManager.createUDTClass() without
first specifying a field name and data type for each field in the
data structure that defines the opaque type.

User response
Specify the field name by calling UDTMetaData.setFieldName();
specify a data type by calling UDTMetaData.setFieldType().