JEP 238: Multi-Release JAR Files extends the JAR file format to allow multiple, Java-release-specific versions of class/resource files to coexist in the same archive. This upgrade makes it easier ...

and I know a jar file uses the zip format. But how does one create a jar file without a manifest file. (I don't mean creating a zip file and renaming it jar. That'd be cheating).

Packaging Java programs as JAR files There's nothing particularly interesting about a JAR file. At its heart, it's simply a mechanism to compress multiple files. A JAR file uses exactly the same ...

Oracle says that starting with April 18, 2017, Java (JRE) will treat all JAR files signed with the MD5 algorithm as unsigned, meaning they'll be considered insecure and blocked from running.

When Oracle Corp. publishes its next quarterly patch update in April, the company will begin treating JAR files signed with the MD5 hashing algorithm as unsigned, the company announced. As of April 18 ...

If you're a software developer with POM files at the root of your project, you know a thing or two about obtaining files from a Maven repository. It's easy to pull from Maven central or the in-house ...

This dual format allows them to be executed as an MSI in Windows and also executed as a JAR file by the Java runtime. JARs are not executables, so they’re not as vigorously checked by anti-virus ...