Question about warning "corrupted file" from PDDocument

[BRUNELLIERE Anthony]

Hello,

I ask you this question before creating a JIRA.

The method PDDocument.save(..) (version 3.0.2) generates a warning if the 
output file already exists :

[...]
public void save(File file, CompressParameters compressParameters) throws 
IOException
    {
        if (file.exists())
        {
            LOG.warn(
                    "You are overwriting the existing file " + file.getName()
                            + ", this will produce a corrupted file if you're 
also reading from it");
        }
[...]

I understand the disclaimer "Don't use the input file as target as this will 
produce a corrupted file", but I'm in a context where an empty ouput file is 
created just before for specific reasons.

Should this warning be limited to non-empty files?

Thank you in advance for your feedback