I’ve been working on this error for several days now and cannot solve it.
I wrote an HttpsURLConnection client to download large files (> 1 GB) using POST requests. I also implemented a server using com.sun.net.httpserver.HttpServer. Since the files are quite large, I have to use the settings: setFixedLengthStreamingMode / setChunkedStreamingMode in my connection (the error is reproduced using either). Please note that I also use the HTTPS connection for download.
I upload a file to several servers at the same time (a separate stream for each HTTP client connected to another server). I set a limit on simultaneous downloads, so every time only X threads have an open UrlConnection (the error was reproduced using X = [1..4]). (The rest of the threads are waiting for the semaphore)
My problem is this: When the download takes less than 5 minutes (less than 4:50 minutes to be exact), everything works fine. If the first batch of threads takes more than 5 minutes, an exception is thrown for each active thread:
java.io.IOException: error entering body of the request to the server at sun.net.www.protocol.http.HttpURLConnection $ StreamingOutputStream.checkError (Unknown source) at sun.net.www.protocol.http.HttpURLConnection $ StreamingOutputStream.write (Unknown source)
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