Unable to create the stream to read the data from file. - Symantec Protection Engine

Question

I am facing an issue while integration Symantec protection engine Java API. Getting an error stating as follows. This issue is with the streamScanReq.scanFile() method.

com.symantec.scanengine.api.ScanException: Unable to create the stream to read the data from file.
    at com.symantec.scanengine.api.StreamScanRequestImpl.scanFile(Unknown Source)
    at test.spe.VirusScan.performVirusScan(VirusScan.java:82)
    at test.spe.SpePoc.main(SpePoc.java:27)

Also, getting error in streamScanReq.finish() method.

java.lang.NullPointerException at 
com.symantec.scanengine.api.RequestImpl.finish(Unknown Source)

public static Result performVirusScan(InputStream inputStream, FileOutputStream outputStream, String fileName) throws IOException, ScanException
{
    File file = new File("C:\\Test\\test.txt");
    Vector<ScanEngineInfo> scanEnginesForScanning = new Vector<>();
    ScanEngineInfo scanEngTobeUsed = new ScanEngineInfo(SCAN_ENGINE_HOST, SCAN_ENGINE_PORT);
    scanEnginesForScanning.add(scanEngTobeUsed);
    ScanEngine scanEngine = ScanEngine.createScanEngine(scanEnginesForScanning);
    //StreamScanRequest streamScanReq = scanEngine.createStreamScanRequest(fileName, null, outputStream, Policy.SCAN);
    StreamScanRequest streamScanReq = scanEngine.createStreamScanRequest(fileName, null, outputStream, Policy.SCAN, true);
    FileScanRequest fileScanReq = scanEngine.createFileScanRequest("C:\\Test\\test.txt", Policy.SCAN, true);
    
    byte[] buff = new byte[512];
    long bytesToRead = file.length();
    int buffCapRead = buff.length;
    int bytesRead = 0;
        
    do
    {
        if (bytesToRead >= buffCapRead)
        {
            buffCapRead = buff.length;
        }
        else
        {
            buffCapRead = (int) bytesToRead;
        }

        // Refresh data buffer.
        buff = new byte[buffCapRead];

        bytesRead = inputStream.read(buff, 0, buffCapRead);
        // Send the bytes to Symantec Protection Engine
        streamScanReq.send(buff);
        bytesToRead = bytesToRead - bytesRead;
    } while (bytesToRead > 0);
    if (inputStream != null){
        inputStream.close();
    }
        inputStream.close();
        outputStream.flush();
        
        Result result = fileScanReq.scanFile();
        
        if(streamScanReq!= null) {
            
        }
        
        Result result1 = streamScanReq.scanFile();
        outputStream.close();
    return result1;
}

Above is the code i am using.

Please help in finding out a solution.