Prevent filtering of files without extension in WAR overlay

[Pautz, Andre (init)]

Dear mailinglist,

is there any way to exclude files that do not have an extension from filtering 
in an WAR overlay? As far as I can see you can only explicitly define 
file-extensions within the <nonFilteredFileExtensions> element. In my setting 
there are binaries that don't have a file-extension at all. All the following 
(mostly silly) variations do not work:

<nonFilteredFileExtensions>
                <nonFilteredFileExtension></nonFilteredFileExtension>
                <nonFilteredFileExtension>*</nonFilteredFileExtension>
                <nonFilteredFileExtension>""</nonFilteredFileExtension>
                <nonFilteredFileExtension> </nonFilteredFileExtension>
<!-- complete name of file-->
                <nonFilteredFileExtension>convert</nonFilteredFileExtension>
</nonFilteredFileExtensions>


Any ideas?

Thanks in advance,
André