Android Question Problem with app sign .keystore

i got message (
its with java jdk-9.0.1 & jdk-9.0.4

 

thanks erel, i will use this keytool example from you.
please add this in private sign key window in next version for others.

 

SOLVED
i used this batch but my tablet (android 6.0) said app was not installed.
it happened with the b4a bridge, then i used the usb cable, a message box pop up, certificate replace, ok.
i installed via usb and it works now also with b4a bridge.

this i used in cmd window, it ask something and you just need to answer

Code:

D:\Java\jdk-9.0.4\bin\keytool -genkey -v -keystore E:\MR_B4A\mr.keystore -alias b4a -validity 3650 -keysize 1024