FileUploadException: java.net.SocketTimeoutException

The FileUploadException with the message "java.net.SocketTimeoutException" is usually thrown when there is a network issue while uploading a file to a server. The SocketTimeoutException is thrown when the server takes too long to respond to the client's request.

Possible causes of this error include:

1. Slow network connectivity: If the network connection between the client and the server is slow, it can lead to a SocketTimeoutException.

2. Large file size: If the file being uploaded is very large, it may take a long time to upload, and the server may time out before the upload is complete.

3. Server overload: If the server is overloaded with too many requests, it may not be able to respond in a timely manner, leading to a timeout exception.

To resolve this issue, you can try the following:

1. Check your network connection and ensure that it is stable and fast enough to support the file upload.

2. Break the file into smaller chunks and upload them one at a time.

3. Increase the server timeout limit to allow more time for the file upload to complete.

4. Check the server logs for any errors or issues that may be causing the timeout exception.