avoid depending on default charset
@@ -40,7 +40,8 @@ public class GroupingSerializationTest {
t.assertMatch(new FloatResultNode(7.3));
t.assertMatch(new StringResultNode("7.3"));
t.assertMatch(new StringResultNode(
- new String(new byte[]{(byte)0xe5, (byte)0xa6, (byte)0x82, (byte)0xe6, (byte)0x9e, (byte)0x9c})));
+ new String(new byte[]{(byte)0xe5, (byte)0xa6, (byte)0x82, (byte)0xe6, (byte)0x9e, (byte)0x9c},
+ java.nio.charset.StandardCharsets.UTF_8)));
t.assertMatch(new RawResultNode(new byte[]{'7', '.', '4'}));
t.assertMatch(new IntegerBucketResultNode());
t.assertMatch(new FloatBucketResultNode());
