JAR
The scheme can be used to access resources located inside a JAR file.
The JAR scheme will be treated as the standard "https" scheme.
By default, the URL to a resource located inside a JAR file has the "jar:file:" scheme which is treated as a non-standard scheme such as "jar:file:/path/*.jar!/path/resource.file". So, it will be canonicalized to the "jar://file/path/*.jar!/path/resource.file" form.