[HTTPCLIENT-2220] file upload with MultipartEntityBuilder causes "socket write error"

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 4.5.2, 4.5.3, 4.5.4, 4.5.5, 4.5.6, 4.5.7, 4.5.8, 4.5.9, 4.5.10, 4.5.11, 4.5.12, 4.5.13
• Fix Version/s: 4.5.13
• Component/s: HttpClient (classic)
• Environment: server = Apache Server

Language

Java

• Assignee: Unassigned
• Reporter: Sebastian Braun
• Created: 01/Jun/22 11:01
• Updated: 01/Jun/22 11:49
• Resolved: 01/Jun/22 11:49

Description

I have some trouble, uploading a file with the MultipartEntityBuilder using the Apache HTTP client 4.5.13.

It crashes with an "Software caused connection abort: socket write error" message.

This kind of behavior did not occur in older versions, so I traced it back back to the rather ancient version 4.5.2.

4.5.2  -> aborts with an socket write error

4.5.1  -> works fine

It could be similar to this issue https://issues.apache.org/jira/browse/HTTPCLIENT-1722.

This issue is closed and a duplicate of another issue. Unfortunately there no reference to the original issue, which might contain additional information.

This is the source code:

try (CloseableHttpClient client = HttpClients.createDefault()) {
  File file = new File("readyForUpload.tar");
  HttpPost postRequest = new HttpPost("https://...");

  // enable Expect: 100-continue, because the server
  RequestConfig requestConfig = RequestConfig.custom().setExpectContinueEnabled(true).build();
 
  HttpEntity entity = MultipartEntityBuilder.create()
    .addBinaryBody("UPLOAD_FILENAME", file, ContentType.APPLICATION_OCTET_STREAM, file.getName())
    .addTextBody("SOME_TEXT", "lorem ipsum ...")
    .build();
 
  postRequest.setConfig(requestConfig);
  postRequest.setEntity(entity);
 
  HttpResponse response = client.execute(postRequest);
  HttpEntity responseEntity = response.getEntity();
 
  System.out.println(response.getStatusLine());
 
  if (responseEntity != null)

{     System.out.println(EntityUtils.toString(responseEntity));     EntityUtils.consume(responseEntity);   }

}