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.
java.util.jarpackage is based on the following specifications:
- Info-ZIP file format - The JAR format is based on the Info-ZIP
file format. See
In JAR files, all file names must be encoded in the UTF-8 encoding.
- Manifest and Signature Specification - The manifest format specification.
Class Summary Class Description AttributesThe Attributes class maps Manifest attribute names to associated string values. Attributes.NameThe Attributes.Name class represents an attribute name stored in this Map. JarEntryThis class is used to represent a JAR file entry. JarFileThe
JarFileclass is used to read the contents of a jar file from any file that can be opened with
JarInputStreamclass is used to read the contents of a JAR file from any input stream.
JarOutputStreamclass is used to write the contents of a JAR file to any output stream.
ManifestThe Manifest class is used to maintain Manifest entry names and their associated Attributes.
Exception Summary Exception Description JarExceptionSignals that an error of some sort has occurred while reading from or writing to a JAR file.