Program: 65207
Project: 65207
Buggy source:
private void parseRoot(Tree tree) throws SAXException {
  if (namespaces != null) {
    Map<String,String> namespacePairs=namespaces.getPrefixesToNamespaces();
    Iterator<String> keys=namespacePairs.keySet().iterator();
    while (keys.hasNext()) {
      String nextKey=keys.next();
      contentHandler.startPrefixMapping(nextKey,namespacePairs.get(nextKey));
    }
  }
  if (tree.getType() == JSONLexer.OBJECT) {
    contentHandler.startDocument();
    int children=tree.getChildCount();
    if (includeRoot) {
      parse((CommonTree)tree.getChild(0));
    }
 else {
      contentHandler.startElement(XMLConstants.EMPTY_STRING,XMLConstants.EMPTY_STRING,null,attributes.setTree(tree,attributePrefix,namespaces,namespaceSeparator,namespaceAware));
      for (int x=0, size=tree.getChildCount(); x < size; x++) {
        parse((CommonTree)tree.getChild(x));
      }
      contentHandler.endElement(XMLConstants.EMPTY_STRING,XMLConstants.EMPTY_STRING,null);
    }
    contentHandler.endDocument();
  }
 else   if (tree.getType() == JSONLexer.ARRAY) {
    SAXUnmarshallerHandler rootContentHandler=null;
    if (getContentHandler() instanceof SAXUnmarshallerHandler) {
      rootContentHandler=(SAXUnmarshallerHandler)getContentHandler();
    }
    int size=tree.getChildCount();
    List list=new ArrayList(size);
    for (int x=0; x < size; x++) {
      parseRoot(tree.getChild(x));
      if (getContentHandler() instanceof SAXUnmarshallerHandler) {
        SAXUnmarshallerHandler saxUnmarshallerHandler=(SAXUnmarshallerHandler)contentHandler;
        list.add(saxUnmarshallerHandler.getObject());
        saxUnmarshallerHandler.setObject(null);
      }
 else       if (getContentHandler() instanceof UnmarshalRecord) {
        UnmarshalRecord unmarshalRecord=(UnmarshalRecord)contentHandler;
        Object unmarshalledObject=unmarshalRecord.getCurrentObject();
        if (includeRoot && unmarshalClass != null) {
          XMLRoot xmlRoot=new XMLRoot();
          xmlRoot.setNamespaceURI(unmarshalRecord.getRootElementNamespaceUri());
          xmlRoot.setLocalName(unmarshalRecord.getLocalName());
          xmlRoot.setObject(unmarshalledObject);
          unmarshalledObject=xmlRoot;
        }
        list.add(unmarshalledObject);
        unmarshalRecord.setCurrentObject(null);
        unmarshalRecord.setRootElementName(null);
        unmarshalRecord.setLocalName(null);
      }
    }
    if (getContentHandler() instanceof SAXUnmarshallerHandler) {
      ((SAXUnmarshallerHandler)getContentHandler()).setObject(list);
    }
 else     if (getContentHandler() instanceof UnmarshalRecord) {
      ((UnmarshalRecord)getContentHandler()).setCurrentObject(list);
      ((UnmarshalRecord)getContentHandler()).setRootElementName(XMLConstants.EMPTY_STRING);
      ((UnmarshalRecord)getContentHandler()).setLocalName(XMLConstants.EMPTY_STRING);
      if (rootContentHandler != null) {
        rootContentHandler.setObject(list);
      }
    }
  }
}

Fixed version (ground truth):
private void parseRoot(Tree tree) throws SAXException {
  if (namespaces != null) {
    Map<String,String> namespacePairs=namespaces.getPrefixesToNamespaces();
    Iterator<String> keys=namespacePairs.keySet().iterator();
    while (keys.hasNext()) {
      String nextKey=keys.next();
      contentHandler.startPrefixMapping(nextKey,namespacePairs.get(nextKey));
    }
  }
  if (tree.getType() == JSONLexer.OBJECT) {
    contentHandler.startDocument();
    int children=tree.getChildCount();
    if (children == 0 && unmarshalClass == null) {
      return;
    }
    if (includeRoot) {
      parse((CommonTree)tree.getChild(0));
    }
 else {
      contentHandler.startElement(XMLConstants.EMPTY_STRING,XMLConstants.EMPTY_STRING,null,attributes.setTree(tree,attributePrefix,namespaces,namespaceSeparator,namespaceAware));
      for (int x=0, size=children; x < size; x++) {
        parse((CommonTree)tree.getChild(x));
      }
      contentHandler.endElement(XMLConstants.EMPTY_STRING,XMLConstants.EMPTY_STRING,null);
    }
    contentHandler.endDocument();
  }
 else   if (tree.getType() == JSONLexer.ARRAY) {
    SAXUnmarshallerHandler rootContentHandler=null;
    if (getContentHandler() instanceof SAXUnmarshallerHandler) {
      rootContentHandler=(SAXUnmarshallerHandler)getContentHandler();
    }
    int size=tree.getChildCount();
    List list=new ArrayList(size);
    for (int x=0; x < size; x++) {
      parseRoot(tree.getChild(x));
      if (getContentHandler() instanceof SAXUnmarshallerHandler) {
        SAXUnmarshallerHandler saxUnmarshallerHandler=(SAXUnmarshallerHandler)contentHandler;
        list.add(saxUnmarshallerHandler.getObject());
        saxUnmarshallerHandler.setObject(null);
      }
 else       if (getContentHandler() instanceof UnmarshalRecord) {
        UnmarshalRecord unmarshalRecord=(UnmarshalRecord)contentHandler;
        Object unmarshalledObject=unmarshalRecord.getCurrentObject();
        if (includeRoot && unmarshalClass != null) {
          XMLRoot xmlRoot=new XMLRoot();
          xmlRoot.setNamespaceURI(unmarshalRecord.getRootElementNamespaceUri());
          xmlRoot.setLocalName(unmarshalRecord.getLocalName());
          xmlRoot.setObject(unmarshalledObject);
          unmarshalledObject=xmlRoot;
        }
        list.add(unmarshalledObject);
        unmarshalRecord.setCurrentObject(null);
        unmarshalRecord.setRootElementName(null);
        unmarshalRecord.setLocalName(null);
      }
    }
    if (getContentHandler() instanceof SAXUnmarshallerHandler) {
      ((SAXUnmarshallerHandler)getContentHandler()).setObject(list);
    }
 else     if (getContentHandler() instanceof UnmarshalRecord) {
      ((UnmarshalRecord)getContentHandler()).setCurrentObject(list);
      ((UnmarshalRecord)getContentHandler()).setRootElementName(XMLConstants.EMPTY_STRING);
      ((UnmarshalRecord)getContentHandler()).setLocalName(XMLConstants.EMPTY_STRING);
      if (rootContentHandler != null) {
        rootContentHandler.setObject(list);
      }
    }
  }
}