| 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. | code | html |
| Pack200.Unpacker | The unpacker engine converts the packed stream to a JAR file. | code | html |
| Pack200 | Transforms a JAR file to or from a packed stream in Pack200 format. | code | html |
| Attributes | The Attributes class maps Manifest attribute names to associated string values. | code | html |
| Attributes.Name | The Attributes.Name class represents an attribute name stored in this Map. | code | html |
| JarEntry | This class is used to represent a JAR file entry. | code | html |
| JarException | Signals that an error of some sort has occurred while reading from or writing to a JAR file. | code | html |
| 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. |
code | html |
| JarFile.JarFileEntry | code | html | |
| JarInputStream | The JarInputStream class is used to read the contents of
a JAR file from any input stream. |
code | html |
| JarOutputStream | The JarOutputStream class is used to write the contents
of a JAR file to any output stream. |
code | html |
| JarVerifier | code | html | |
| JarVerifier.VerifierStream | code | html | |
| JavaUtilJarAccessImpl | code | html | |
| Manifest | The Manifest class is used to maintain Manifest entry names and their associated Attributes. | code | html |
| Manifest.FastInputStream | code | html |
java.util.jar package is based on the following specifications:
In JAR files, all file names must be encoded in the UTF-8 encoding.