 | Security: digitally sign the contents of a JAR file. Users who
recognize your signature can then optionally grant your software
security privileges it wouldn't otherwise have. |
| Decreased download time: If your applet is bundled in a JAR
file, the applet's class files and associated resources can be
downloaded to a browser in a single HTTP transaction without the
need for opening a new connection for each file. |
| Compression: The JAR format allows you to compress your files
for efficient storage. |
| Package Sealing: Packages stored in JAR files can be optionally
sealed so that the package can enforce version consistency.
Sealing a package within a JAR file means that all classes
defined in that package must be found in the same JAR file. |
| Package Versioning: A JAR file can hold data about the files it
contains, such as vendor and version information. |
| Portability: The mechanism for handling JAR files is a standard
part of the Java platform's core API. |
