Module java.base
Package java.util.jar
package java.util.jar
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
Thejava.util.jar
package is based on the following
specifications:
- Info-ZIP file format - The JAR format is based on the Info-ZIP
file format. See
java.util.zip
package description.
In JAR files, all file names must be encoded in the UTF-8 encoding.
- Manifest and Signature Specification - The manifest format specification.
- Since:
- 1.2
-
ClassDescriptionThe Attributes class maps Manifest attribute names to associated string values.The Attributes.Name class represents an attribute name stored in this Map.This class is used to represent a JAR file entry.Signals that an error of some sort has occurred while reading from or writing to a JAR file.The
JarFile
class is used to read the contents of a jar file from any file that can be opened withjava.io.RandomAccessFile
.TheJarInputStream
class is used to read the contents of a JAR file from any input stream.TheJarOutputStream
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.