What Is META-INF? (MANIFEST.MF and the Folder Explained)

What the META-INF folder and MANIFEST.MF file do inside a JAR — manifest attributes, signature files, services, and what's safe to edit.

What the META-INF Folder Is For

MANIFEST.MF — The Manifest File

Signature Files (.SF, .RSA, .DSA)

services/ — The ServiceLoader Folder

What's Safe to Edit

Summary