Thanks, yes it happens with any file upload.

-----Original Message-----
From: Mark Thomas <ma...@apache.org> 
Sent: Friday, April 14, 2023 9:36 AM
To: users@tomcat.apache.org
Subject: Re: Tomcat 8.5.85 and above - Issue with file uploads

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On 13/04/2023 21:40, William L. Cunningham wrote:
> Environment:  Windows 2019 Standard with latest JDK 17 and Apache Tomcat 
> 8.5.87.
>
> When trying to upload a file to the application running off Tomcat (custom 
> software), we are getting the following error since 8.5.85 (works fine on 
> 8.5.84).
>
> ERROR [2023-04-13 15:20:20]: 
> com.company.dataimporter.servlet.FileUpload::doPost::85 Cannot delete 
> C:\Program Files\Apache Software Foundation\Tomcat 
> 8.5_Tomcat_Prod\work\Catalina\localhost\company\upload_1da07be9_7508_4
> 4d3_aee6_28d1d7989727_00000000.tmp
> java.lang.IllegalStateException: Cannot delete C:\Program Files\Apache 
> Software Foundation\Tomcat 
> 8.5_Tomcat_Prod\work\Catalina\localhost\company\upload_1da07be9_7508_44d3_aee6_28d1d7989727_00000000.tmp
>       at 
> org.apache.tomcat.util.http.fileupload.disk.DiskFileItem.delete(DiskFi
> leItem.java:428) ~[tomcat-coyote.jar:8.5.87]
>
> This same procedure works perfectly fine in 8.5.84.  It was something 
> introduced with 8.5.85.  It also works fine on a Linux hosted version 
> (Centos) for 8.5.84 and above.  So it appears to be Windows centric.
>
> When I watch the procedure in the Catalina\localhost\company folder on 
> 8.5.84, I see the tmp file generated and then immediately deleted (it's a 
> small upload).  On 8.5.85 and above, it's locked and can't be deleted.  Thus 
> causing the error.
>
> Anyone have any thoughts?

Tomcat 8.5.85 includes an updated version of the Commons FileUpload code that 
throws an ISE if the temporary file can't be deleted.

https://github.com/apache/tomcat/commit/8d21b9ef4ae30f6f6474f00a72887338a5b745ac

It looks like this may have exposed an underlying Commons IO bug:

https://issues.apache.org/jira/browse/IO-788

Do you see this problem every time you try to upload a file?

Mark

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