Couldn't find: jarsigner

[lingchenma]

[*] Running backdoor-apk.sh v0.2.4a on 2023年 05月 14日 星期日 23:11:27 CST
[!] Check your environment and configuration. Couldn't find: jarsigner

[son-of-winter]

https://www.oracle.com/java/technologies/downloads/
install JDK