Attributes class is used to store values for manifest entries.
||The name part of the name/value pairs constituting an attribute as
defined by the specification of the JAR manifest.
||Represents a single file in a JAR archive together with the manifest
attributes and digital signatures associated with it.
JarFile is used to read jar entries and their associated data from
||The input stream from which the JAR file to be read may be fetched.
JarOutputStream is used to write data in the
format to an arbitrary output stream
Manifest class is used to obtain attribute information for a
JarFile and its entries.
||Class factory for