c3r-cli-spark/src/main/java/com/amazonaws/c3r/spark/io/schema/InteractiveSchemaGenerator.java [220:230]:
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    private String readNextLineLowercase() {
        try {
            final String nextLine = consoleInput.readLine();
            if (nextLine == null) {
                throw new C3rRuntimeException("Unexpected end of user input.");
            }
            return nextLine.toLowerCase();
        } catch (IOException e) {
            throw new C3rRuntimeException("Unexpected end of user input.", e);
        }
    }
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c3r-cli/src/main/java/com/amazonaws/c3r/io/schema/InteractiveSchemaGenerator.java [219:229]:
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    private String readNextLineLowercase() {
        try {
            final String nextLine = consoleInput.readLine();
            if (nextLine == null) {
                throw new C3rRuntimeException("Unexpected end of user input.");
            }
            return nextLine.toLowerCase();
        } catch (IOException e) {
            throw new C3rRuntimeException("Unexpected end of user input.", e);
        }
    }
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