In ZipPackage line 174 (in trunk)  when one IOException is thrown by ZipFileZipEntrySource the code tries to fall back to stream processing, and a log message severity ERROR is generated.

The mentioned line code:

LOG.atError().log("Error in zip file {} - falling back to stream processing (i.e. ignoring zip central directory)", file);



In my opinion, the ERROR severity is too high, as the code will try a fall back.
As ERROR severity logs, in our environment, generate some actions to evaluate what is happening, this can be unnecessary, because the fall back may successfully circumvent the problem.

So my suggestion is to decrease to WARNING severity.