java.util.jar

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. 

Exceptions

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