Understanding the MANIFEST.MF

http://java.sun.com/docs/books/tutorial/deployment/jar/defman.html

pathname
META-INF/MANIFEST.MF

only one manifest file in an archive

form of "header: value" pairs
Manifest-Version: 1.0

JDK 1.1 manifest has entries for each file contained in the archive

引用

Manifest-Version: 1.0

Name: java/math/BigDecimal.class
SHA1-Digest: TD1GZt8G11dXY2p4olSZPc5Rj64=
MD5-Digest: z6z8xPj2AW/Q9AkRSPF0cg==

Name: java/math/BigInteger.class
SHA1-Digest: oBmrvIkBnSxdNZzPh5iLyF0S+bE=
MD5-Digest: wFymhDKjNreNZ4AzDWWg1Q==

Special-Purpose Manifest Headers

Applications Bundled as JAR Files
(Recall that the entry point is the class having a method with signature public static void main(String[] args).)

Main-Class: MyPackage.MyClass

Download Extensions
Class-Path: jar1-name jar2-name directory-name/jar3-name

Warning: The text file must end with a new line or carriage return. The last line will not be parsed properly if it does not end with a new line or carriage return.