This post introduces you to multi-release JAR files. Discovering multi-release JAR files Many third-party Java frameworks and libraries support several versions of the Java platform.

I've got a problem that I'm stuck on. How do I programmatically get the executing jar file's absolute path?I'm trying to look for a folder that is relative to the jar file's directory but I'm ...

Here's a quick example of how to use Java's jarsigner to digitially sign JAR files.