} catch (Exception e) {
// log a warning
log.log(java.util.logging.Level.WARNING, "cannot cache dereferenced data: " + e);
}
} else if (input.isElement()) {
referenceData = new ReferenceSubTreeData
(input.getSubNode(), input.isExcludeComments());
} else if (input.isOctetStream() || input.isByteArray()) {
try {
referenceData = new ReferenceOctetStreamData
(input.getOctetStream(), input.getSourceURI(),