private Map<String, BloomType> getMockColumnFamiliesForBloomType(int numCfs) {
    Map<String, BloomType> familyToBloomType = new HashMap<>();
    // use column family names having special characters
    if (numCfs-- > 0) {
      familyToBloomType.put("Family1!@#!@#&", BloomType.ROW);
    }
    if (numCfs-- > 0) {
      familyToBloomType.put("Family2=asdads&!AASD", BloomType.ROWCOL);
    }
    if (numCfs-- > 0) {
      familyToBloomType.put("Family3", BloomType.NONE);
    }
    return familyToBloomType;
  }
@return a map from column family names to compression algorithms for testing column family
        compression. Column family names have special characters
hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestHFileOutputFormat2.java