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A JAR ("Java archive") file is a package file format typically used to aggregate many Java class files and associated metadata and resources (text, images, etc.) into one file for distribution. [4] JAR files are archive files that include a Java-specific manifest file. They are built on the ZIP format and typically have a .jar file extension. [5]
ZIP files generally use the file extensions.zip or .ZIP and the MIME media type application/zip. [1] ZIP is used as a base file format by many programs, usually under a different name. When navigating a file system via a user interface, graphical icons representing ZIP files often appear as a document or other object prominently featuring a zipper.
Created in 2004, PHAR files were influenced [1] by Java's JAR file format with the aim of speeding up deployment of applications via FTP. [1] Rather than using the ZIP file format the simpler tar format was used, and the first PHAR was created using the tar command line utility [1] as a proof of concept.
.zip, .zipx application/zip ZIP: Originally DOS, now multiple Multiple Yes The most widely used compression format on Microsoft Windows. Commonly used on Macintosh and Unix systems as well. .zoo application/x-zoo zoo: Multiple Multiple Yes .zpaq ZPAQ: Multiple Multiple Yes Journaling (append-only) archive format with rollback capability.
A WAR file may be digitally signed in the same way as a JAR file in order to allow others to determine where the source code came from. There are special files and directories within a WAR file: The /WEB-INF directory in the WAR file contains a file named web.xml which defines the structure of the web application. If the web application is only ...
An EAR file is a standard JAR file (and therefore a Zip file) with an .ear extension, with one or more entries representing the modules of the application, and a metadata directory called META-INF which contains one or more deployment descriptors.
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