java.util.jar

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.

The unpacker engine converts the packed stream to a JAR file.

The Attributes class maps Manifest attribute names to associated string values.

This class is used to represent a JAR file entry.

The JarFile class is used to read the contents of a jar file from any file that can be opened with java.io.RandomAccessFile.

The JarInputStream class is used to read the contents of a JAR file from any input stream.

The JarOutputStream class is used to write the contents of a JAR file to any output stream.

The Manifest class is used to maintain Manifest entry names and their associated Attributes.

Transforms a JAR file to or from a packed stream in Pack200 format.

Signals that an error of some sort has occurred while reading from or writing to a JAR file.