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@@ -49,7 +49,7 @@ public class MutatorOperationImpl extends OperationImpl implements
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   @Override
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   protected void decodePayload(byte[] pl) {
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     getCallback().receivedStatus(new OperationStatus(true,
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-			new String(pl)));
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+			String.valueOf(decodeLong(pl, 0))));
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   }
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 }

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@@ -189,6 +189,17 @@ abstract class OperationImpl extends BaseOperationImpl {
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       | (data[i+3] & 0xff);
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   }
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+	static long decodeLong(byte[] data, int i) {
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+		return(data[i  ] & 0xff) << 56
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+			| (data[i+1] & 0xff) << 48
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+			| (data[i+2] & 0xff) << 40
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+			| (data[i+3] & 0xff) << 32
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+			| (data[i+4] & 0xff) << 24
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+			| (data[i+5] & 0xff) << 16
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+			| (data[i+6] & 0xff) << 8
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+			| (data[i+7] & 0xff);
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+	}
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+
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   /**
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    * Prepare a send buffer.
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    *