Github user arjansh commented on a diff in the pull request:

    https://github.com/apache/metamodel/pull/182#discussion_r195067558
  
    --- Diff: 
hbase/src/main/java/org/apache/metamodel/hbase/HBaseFamilyMap.java ---
    @@ -106,9 +105,9 @@ public String toString() {
                 if (sb.length() > 1) {
                     sb.append(',');
                 }
    -            sb.append(Arrays.toString(entry.getKey()));
    +            sb.append(new String(entry.getKey()));
                 sb.append('=');
    -            sb.append(Arrays.toString(entry.getValue()));
    +            sb.append(new String(entry.getValue()));
    --- End diff --
    
    The problem however is that the `Arrays.toString` variant returns the 
key/value combination of `hey` and `yo` as `[104, 101, 121]` and `[121, 111]`, 
which you can hardly call a String representation. where the `new String` will 
typically return `hey` and `yo` in that case. In case some unexpected character 
encoding is used it may display some shady characters, but it should still work.


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