My purpose is to use jarsigner to sign apk.
I get the following prompt：
% jarsigner The operation couldn’t be completed. Unable to locate a Java Runtime that supports jarsigner. Please visit http://www.java.com for information on installing Java.
my java version hint：
% java -version java version "1.8.0_321" Java(TM) SE Runtime Environment (build 1.8.0_321-b07) Java HotSpot(TM) 64-Bit Server VM (build 25.321-b07, mixed mode)
Mac version is 11.6.3
How can I solve this problem please?
I finally solved it by downloading the JDK