CODEWITHSUNDEEP
javacommand-linejarclasspath
Jack
Jack

Reputation: 343

Can't run java application with jar dependency: Could not find or load main class

My code runs fine in my IDE, and I have the javax.mail.jar set as a dependency, and my code runs fine.

Except, I need to use

Console console = System.console();

and this does not work within IDE.

So, I am trying to compile my code and run it via the terminal. I can compile, although, when running my code it returns the error:

Error: Could not find or load main class Main

This is what I do to compile:

javac -cp "./javax.mail.jar" Main.java

Then to run it:

java -cp "./javax.mail.jar" Main

But, I get the error:

Could not find or load main class Main

This is my full code:

package com.company;

import java.io.IOException;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class Main {
public static void main(String[] args) throws IOException {


    Properties props = new Properties();
    props.put("mail.smtp.host", "smtp.gmail.com");
    props.put("mail.smtp.socketFactory.port", "465");
    props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
    props.put("mail.smtp.auth", "true");
    props.put("mail.smtp.port", "465");

    Session session = Session.getDefaultInstance(props,
            new javax.mail.Authenticator() {
                protected PasswordAuthentication getPasswordAuthentication() {
                    return new PasswordAuthentication("[email protected]","pass");
                }
            });

    try {

        Message message = new MimeMessage(session);
        message.setFrom(new InternetAddress("[email protected]"));
        message.setRecipients(Message.RecipientType.TO, InternetAddress.parse("[email protected]"));
        message.setSubject("JavaMail");
        message.setText("Hi," + "\n\n This is a test");

        Transport.send(message);

        System.out.println("Sent!");


    } catch (MessagingException e) {
        throw new RuntimeException(e);
    }
}


}

EDIT:

Also, I've tried running from parent directory (This has my com folder in and the java.mail.jar):

java -cp "./javax.mail.jar;." com.company.Main

But I get this:

Error: Could not find or load main class com.company.Main

Upvotes: 1

Views: 898

Answers (3)

Sanjeev
Sanjeev

Reputation: 9946

You shall compile it from parent folder of com, by:

javac -cp "./javax.mail.jar:." com/company/Main.java

And then run by

java -cp "./javax.mail.jar:." com.company.Main

Upvotes: 2

Rajesh Dwivedi
Rajesh Dwivedi

Reputation: 370

You can use [java.util.Scanner][1]

[1]: https://docs.oracle.com/javase/8/docs/api/java/util/Scanner.html class to accept the input from console instead of Console which is not useful in IDEs.

Other post have already answered how to compile the file from command line so not adding the duplicate detail.

Upvotes: -2

Roman C
Roman C

Reputation: 1

java -cp ".;./javax.mail.jar" com.company.Main

Upvotes: 1

Related Questions