private Map<String, Map> volumes() {
    final ImmutableMap.Builder<String, Map> volumes = ImmutableMap.builder();
    for (final Map.Entry<String, String> entry : job.getVolumes().entrySet()) {
      final String path = entry.getKey();
      final String source = entry.getValue();
      if (Strings.isNullOrEmpty(source)) {
        volumes.put(path, new HashMap());
      }
    }
    return volumes.build();
  }
private Map < String , Map > volumes ( ) { final ImmutableMap . Builder < String , Map > volumes = ImmutableMap . builder ( ) ; for ( final Map . Entry < String , String > entry : job . getVolumes ( ) . entrySet ( ) ) { final String path = entry . getKey ( ) ; final String source = entry . getValue ( ) ; if ( Strings . isNullOrEmpty ( source ) ) { volumes . put ( path , new HashMap ( ) ) ; } } return volumes . build ( ) ; }
Get container volumes.

@return A set of container volumes.