Note that this issue only occurs in a JSF 2.2 environment that relies on the Servlet 3.0 javax.servlet.http.Part interface for uploading files.
Steps to Reproduce:
1. Deploy showcase-webapp.war to plain Tomcat from the master (4.2.x) branch and visit the URL for the Multiple Use-Case for the alloy:inputFIle component.
2. Upload 2 or more files.
3. Click on the Delete icon for one of the files listed in the Model Value
4. When asked "Are you sure you want to delete this?" click on OK
If the bug is fixed, then the file will no longer appear in the list of files in the Model Value.
If the bug still exists, then zero bytes will be listed next to one of the files in the list.