Spring org.springframework.mail.javamail.JavaMailSender setPassword should take a char[]

We are getting security tooling reports because

JavaMailSender.setPassword(String s)

exists, and thus the password can not be guaranteed to be cleared from memory. If the the api was changed/added to take

JavaMailSender.setPassword(char[] c)

Then the array could be Arrays.fill(c, 0);

when done.

Comment From: bclozel

Thanks for reaching out.

We would need to later convert it... back to a String in order to call https://jakarta.ee/specifications/mail/1.6/apidocs/javax/mail/service#connect-java.lang.String-int-java.lang.String-java.lang.String-.

So I guess we can't really consider that until the spec is changed.