legacy/src/main/java/thredds/catalog/parser/jdom/InvCatalogFactory10.java
public Object readMetadataContentFromURL(InvDataset dataset, java.net.URI uri) throws java.io.IOException {
    Element elem = readContentFromURL(uri);
    Object contentObject = readMetadataContent(dataset, elem);
    if (debugMetadataRead) System.out.println(" convert to " + contentObject.getClass().getName());
    return contentObject;
  }
public Object readMetadataContentFromURL(InvDataset dataset, java.net.URI uri) throws java.io.IOException {
    Element elem = readContentFromURL(uri);
    Object contentObject = readMetadataContent(dataset, elem);
    if (debugMetadataRead) System.out.println(" convert to " + contentObject.getClass().getName());
    return contentObject;
  }
this is only called for ThredddsMetadata