PsiReference[] (String namespace, XmlTag tag) { XmlAttribute locationAttr = tag.getAttribute(XmlUtil.SCHEMA_LOCATION_ATT, XmlUtil.XML_SCHEMA_INSTANCE_URI); if (locationAttr == null) { return PsiReference.EMPTY_ARRAY; } XmlAttributeValue value = locationAttr.getValueElement(); return value == null ? PsiReference.EMPTY_ARRAY : getLocationReferences(namespace, value); }