frontend/cts/src/main/java/com/amazonaws/ml/mms/cts/HttpClient.java [129:139]:
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        channel.closeFuture().sync();

        int statusCode = handler.getStatusCode();
        String ret = handler.getContent();
        if (statusCode == 200) {
            logger.info("predict: {} success.", modelName);
            logger.trace(ret);
            return true;
        }
        logger.warn("predict: {} failed: {}", modelName, ret);
        return false;
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frontend/cts/src/main/java/com/amazonaws/ml/mms/cts/HttpClient.java [154:164]:
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        channel.closeFuture().sync();

        int statusCode = handler.getStatusCode();
        String ret = handler.getContent();
        if (statusCode == 200) {
            logger.info("predict: {} success.", modelName);
            logger.trace(ret);
            return true;
        }
        logger.warn("predict: {} failed: {}", modelName, ret);
        return false;
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