introduce bitloops

src/main/java/puzzle/Meta.java

@@ -45,7 +45,6 @@ public class Meta {
          val parts  = string.split("\t", 3);
          return new ShardLem(Lemma.from(parts[0]), Integer.parseInt(parts[1]), GSON.fromJson(parts[2], String[].class));
       } catch (Exception e) {
-         e.printStackTrace();
          return new ShardLem(Lemma.from("XXX"), -1, new String[0]);
       }
    }