This test cases uses a special XML Schema for validation due to problems in Xerces-J with loading several schema documents for a single namespace.
The schema documents Pos_050101_namespaces_004.xsd and Pos_050101_namespaces_004_1.xsd were merged manually. The resulting XSD was saved as test_data/Pos_050101_namespaces_004_merged.xsd .
Any changes in the original schema documents mus be reflected in test_data/Pos_050101_namespaces_004_merged.xsd .