/**
  * 日本語名の配列を返す。
  *
  * @return 日本語名の配列
  */
 public static String[] getJapaneseNames() {
   ColumnMatchingCondition[] values = ColumnMatchingCondition.values();
   String[] result = new String[values.length];
   for (int i = 0; i < values.length; i++) {
     result[i] = values[i].getJapaneseName();
   }
   return result;
 }
 static {
   for (ColumnMatchingCondition conditon : ColumnMatchingCondition.values()) {
     String key = conditon.getJapaneseName();
     if (japaneseNameMap.containsKey(key)) {
       throw new RuntimeException("日本語名に重複があります");
     }
     japaneseNameMap.put(key, conditon);
   }
 }