java.lang.NoClassDefFoundError: javax/mail/Authenticator, whats wrong?

Question

Send to Email.java

package helper;

//Mail.java - smtp sending starttls (ssl) authentication enabled
//1.Open a new Java class in netbeans (         


        

Answer 1

When I had this problem, I had included the mail-api.jar in my maven pom file. That's the API specification only. The fix is to replace this:

javax.mail
javax.mail-api

with the reference implementation of that api:

com.sun.mail
javax.mail

I know it has sun in the package name, but that's the latest version. I learned this from https://stackoverflow.com/a/28935760/1128668