iothub/device/iot-device-client/src/main/java/com/microsoft/azure/sdk/iot/device/transport/https/HttpsResponse.java [121:132]:
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    private static String flattenValuesList(List<String> values)
    {
        StringBuilder valuesStr = new StringBuilder();
        for (String value : values)
        {
            valuesStr.append(value).append(",");
        }
        // remove the trailing comma.
        valuesStr = new StringBuilder(valuesStr.substring(0, Math.max(0, valuesStr.length() - 1)));

        return valuesStr.toString();
    }
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provisioning/provisioning-service-client/src/main/java/com/microsoft/azure/sdk/iot/provisioning/service/transport/https/HttpResponse.java [147:158]:
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    private static String flattenValuesList(List<String> values)
    {
        StringBuilder valuesStr = new StringBuilder();
        for (String value : values)
        {
            valuesStr.append(value).append(",");
        }
        // remove the trailing comma.
        valuesStr = new StringBuilder(valuesStr.substring(0, Math.max(0, valuesStr.length() - 1)));

        return valuesStr.toString();
    }
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provisioning/provisioning-device-client/src/main/java/com/microsoft/azure/sdk/iot/provisioning/device/transport/https/HttpResponse.java [140:151]:
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    private static String flattenValuesList(List<String> values)
    {
        StringBuilder valuesStr = new StringBuilder();
        for (String value : values)
        {
            valuesStr.append(value).append(",");
        }
        // remove the trailing comma.
        valuesStr = new StringBuilder(valuesStr.substring(0, Math.max(0, valuesStr.length() - 1)));

        return valuesStr.toString();
    }
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