Provides classes for reading and writing the JAR (Java ARchive) file
format, which is based on the standard ZIP file format with an
optional manifest file. The manifest stores meta-information about the
JAR file contents and is also used for signing JAR files.
Package Specification
The
java.util.jar
package is based on the following specifications:
Interfaces
Pack200.Packer |
The packer engine applies various transformations to the input JAR file,
making the pack stream highly compressible by a compressor such as
gzip or zip. |
Pack200.Unpacker |
The unpacker engine converts the packed stream to a JAR file. |
Classes
Attributes |
The Attributes class maps Manifest attribute names to associated string
values. |
Attributes.Name |
The Attributes.Name class represents an attribute name stored in
this Map. |
JarEntry |
This class is used to represent a JAR file entry. |
JarFile |
The JarFile class is used to read the contents of a jar file
from any file that can be opened with java.io.RandomAccessFile . |
JarInputStream |
The JarInputStream class is used to read the contents of
a JAR file from any input stream. |
JarOutputStream |
The JarOutputStream class is used to write the contents
of a JAR file to any output stream. |
Manifest |
The Manifest class is used to maintain Manifest entry names and their
associated Attributes. |
Pack200 |
Transforms a JAR file to or from a packed stream in Pack200 format. |
Exceptions
JarException |
Signals that an error of some sort has occurred while reading from
or writing to a JAR file. |