COMODO cert signed applet still 'self-signed'

Question

I have valid COMODO certificate which I use to sign DLLs. I now need to sign applet.jar and for this I used this command:
jarsigner "PATH_TO\my.jar" -storetype pkcs12 -keystore "PATH_TO\cert.pfx" 1 -tsa http://sha256timestamp.ws.symantec.com/sha256/timestamp

As result I get warning:

The signer's certificate chain is not validated.

And my applet is considered as self-signed. I found this solution: The signer’s certificate chain is not validated and the same here, but now when I try to sign jar with exported certificate I get this error:

jarsigner error: java.lang.RuntimeException: keystore load: Integrity check failed: java.security.NoSuchAlgorithmException: Algorithm HmacPBESHA256 not available

I tried to add this to command line -sigalg SHA256withRSA -digestalg SHA256 but nothing changed.

Can anybody help with this issue? Thanks in advance.

Answer 1

I solved my problem by solution from original question, BUT key point is that you can NOT use Windows 10 for this trick, I used Windows 7 and it works just fine.

Why? no idea...