7006576: (zipfs) Path.exists() always returns false on dirs when zip/JAR file built without dirs
7009092: (zipfs) ZipPath.isSameFile() should always return true if this Path and the given Path are equal.
7009085: (zipfs) ZipPath.normalize("/./.") returns null.
7009102: (zipfs) ZipPath.toRealPath() should always return absolute path.
Summary: zip filesystem provider update
Reviewed-by: alanb