getAsBytes

Gets a provider of the entire file contents as a single byte array.

The file is read only once and only when the value is requested for the first time.

The returned provider won't have a value, i.e., isPresent will return false when:

• the underlying file does not exist;
• this FileContents is connected to a Provider<RegularFile> with no value;

When the underlying file exists but reading it fails, the ensuing exception is permanently propagated to callers of get, getOrElse, getOrNull and isPresent.