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https://issues.apache.org/jira/browse/WICKET-6210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15412432#comment-15412432
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Matt Pavlovich edited comment on WICKET-6210 at 8/8/16 8:46 PM:
----------------------------------------------------------------
Tracked down line of code responsible:
FileUploadField.class
line:115 "item.getSize() > 0".. this causes the retuned list of filenames to
be empty, and the upload to not succeed
{noformat}
// If we successfully installed a multipart request
if (request instanceof IMultipartWebRequest)
{
// Get the item for the path
final List<FileItem> fileItems =
((IMultipartWebRequest)request).getFile(getInputName());
if (fileItems != null)
{
for (FileItem item : fileItems)
{
// Only update the model when there is
a file (larger than zero
// bytes)
if (item != null && item.getSize() > 0)
{
fileUploads.add(new
FileUpload(item));
}
}
}
}
{noformat}
Debugger shows web browser and servlet passes complete request:
{noformat}
fileItems: [name=zero.txt, StoreLocation=null, size=0bytes, isFormField=false,
FieldName=fileInput]
{noformat}
was (Author: mattrpav):
Found line of code:
FileUploadField.class
line:115
{noformat}
// If we successfully installed a multipart request
if (request instanceof IMultipartWebRequest)
{
// Get the item for the path
final List<FileItem> fileItems =
((IMultipartWebRequest)request).getFile(getInputName());
if (fileItems != null)
{
for (FileItem item : fileItems)
{
// Only update the model when there is
a file (larger than zero
// bytes)
if (item != null && item.getSize() > 0)
{
fileUploads.add(new
FileUpload(item));
}
}
}
}
{noformat}
> FileUpload does not support files of zero size
> ----------------------------------------------
>
> Key: WICKET-6210
> URL: https://issues.apache.org/jira/browse/WICKET-6210
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 6.22.0
> Reporter: Matt Pavlovich
> Priority: Minor
> Attachments: wicket-6210.zip
>
>
> When attempting to use the wicket fileupload component, if the user selects a
> file of size zero, the operation fails.
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