code: final AbstractSingleFileObjectStore.Directory makeDirectory(int minimumNodeSize,
                                                                  long directoryRootByteAddress,
                                                                  long directoryRootLength)
                      throws ObjectManagerException {
          return new Directory(minimumNodeSize,
                               directoryRootByteAddress,
                               directoryRootLength);
      }
docs: /*
  (non-Javadoc)
  
  @see com.ibm.ws.objectManager.AbstractSingleFileObjectStore#readDirectory(int, long, long)