gjarsigner(1) on Linux
The text 807e6a27d822, as Debian 7 (Wheezy) shipped it.
Java ARchive (JAR) file signing and verification tool
Flags it lists
-
-certs -
-help -
-internalsf -
-keypass -
-keystore -
-provider -
-sectionsonly -
-sigfile -
-signedjar -
-storepass -
-storetype -
-verbose -
-verify