src/main/java/org/opensearch/performanceanalyzer/rest/QueryBatchRequestHandler.java [359:368]:
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    private void sendResponse(HttpExchange exchange, String response, int status)
            throws IOException {
        try (OutputStream os = exchange.getResponseBody()) {
            exchange.sendResponseHeaders(status, response.length());
            os.write(response.getBytes());
        } catch (Exception e) {
            response = e.toString();
            exchange.sendResponseHeaders(HttpURLConnection.HTTP_INTERNAL_ERROR, response.length());
        }
    }
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src/main/java/org/opensearch/performanceanalyzer/rest/QueryMetricsRequestHandler.java [330:339]:
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    private void sendResponse(HttpExchange exchange, String response, int status)
            throws IOException {
        try (OutputStream os = exchange.getResponseBody()) {
            exchange.sendResponseHeaders(status, response.length());
            os.write(response.getBytes());
        } catch (Exception e) {
            response = e.toString();
            exchange.sendResponseHeaders(HttpURLConnection.HTTP_INTERNAL_ERROR, response.length());
        }
    }
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src/main/java/org/opensearch/performanceanalyzer/rest/QueryRcaRequestHandler.java [263:272]:
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    public void sendResponse(HttpExchange exchange, String response, int status)
            throws IOException {
        try (OutputStream os = exchange.getResponseBody()) {
            exchange.sendResponseHeaders(status, response.length());
            os.write(response.getBytes());
        } catch (Exception e) {
            response = e.toString();
            exchange.sendResponseHeaders(HttpURLConnection.HTTP_INTERNAL_ERROR, response.length());
        }
    }
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