- * Failure of the mapping procedure to find a matching physical file.
- * Presence of a path element during mapping that begins with a dot.
- * A path element which, after URL unescaping, contains slashes.
- * The mapping procedure finding a file which is neither a directory
- nor a regular file.
- * Presence of a non-final but empty path element during mapping.
- * A physical file having been found which is not being matched by any
+ * The mapping procedure fails to find a matching physical file;
+ * A path element is encountered during mapping which, after URL
+ unescaping, either begins with a dot or contains slashes;
+ * The mapping procedure finds a file which is neither a directory nor
+ a regular file;
+ * An empty, non-final path element is encountered during mapping; or
+ * The mapping procedure results in a file which is not matched by any