code: public static FileSystemManager getFileSystemManager() {
          try {
              final FileSystemManager manager = VFS.getManager();
              if (manager.getBaseFile() == null) {
                  // if no base file exists, set the working directory to base
                  // dir.
                  ((DefaultFileSystemManager) manager).setBaseFile(new File("."));
              }
              return manager;
          } catch (final FileSystemException e) {
              throw new IllegalStateException(e);
          }
      }
docs: Gets the file system manager to use in typical scenarios.
  
  @return