| AbstractUnicodeExtraField | A common base class for Unicode extra information extra fields. |
| AsiExtraField | Adds Unix file permission and UID/GID fields as well as symbolic link handling. |
| ExtraFieldUtils | ZipExtraField related methods |
| ExtraFieldUtils.UnparseableExtraField | "enum" for the possible actions to take if the extra field cannot be parsed. |
| JarMarker | If this extra field is added as the very first extra field of the archive, Solaris will consider it an executable jar file. |
| UnicodeCommentExtraField | Info-ZIP Unicode Comment Extra Field (0x6375): |
| UnicodePathExtraField | Info-ZIP Unicode Path Extra Field (0x7075): |
| UnparseableExtraFieldData | Wrapper for extra field data that doesn't conform to the recommended format of header-tag + size + data. |
| UnrecognizedExtraField | Simple placeholder for all those extra fields we don't want to deal with. |
| ZipEntry | Extension that adds better handling of extra fields and provides access to the internal and external file attributes. |
| ZipFile | Replacement for java.util.ZipFile. |
| ZipLong | Utility class that represents a four byte integer with conversion rules for the big endian byte order of ZIP files. |
| ZipOutputStream | Reimplementation of java.util.zip.ZipOutputStream that does handle the extended functionality of this package, especially internal/external file attributes and extra fields with different layouts for local file data and central directory entries. |
| ZipOutputStream.UnicodeExtraFieldPolicy | enum that represents the possible policies for creating Unicode extra fields. |
| ZipShort | Utility class that represents a two byte integer with conversion rules for the big endian byte order of ZIP files. |
| ZipUtil | Utility class for handling DOS and Java time conversions. |
