japicompat(1) on Linux
The text a434b8cd8e02, as Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
Test Java APIs for binary backwards compatibility.
Flags it lists
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-4 -
-h -
-i -
-j -
-o -
-q -
-s -
-t -
-v -
-w