We currently have four different java.security files in the workspace, and history has shown that they aren't all updated at the same time.

It would probably be best to have some delta logic. The biggest pain would be inserting the providers and renumbering the existing ones, but
shouldn't be too hard. Probably would want some kind of marker:

# security.provider.n discussion
<insert list here>

And keep the full provider list separately. The other diffs could just be appended at the end of the file.