@Reference EmailService emailService throwing null

[tahir1601]

Requirement:- send email upon form submission.
Below is my class. I am getting null pointer exception when i print the emailService. Can anyone help me out please.

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import org.osgi.service.component.annotations.Component;

import org.osgi.service.component.annotations.Reference;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import com.adobe.acs.commons.email.EmailService;

Arun Patidar​smacdonald2008​

@Component(immediate = true, service = ContactEmailService.class)

public class ContactEmailService {

@Reference

private EmailService mailService;

Logger logger = LoggerFactory.getLogger(this.getClass());

EmailDetails details = new EmailDetails(); //bean class

private Map<String, String> emailParams = new HashMap<>();

public void sendEmail() {

logger.info("email service"+mailService); // prints null

details.setTemplatePath("/etc/notification/email/kohler/contact_email.txt");

emailParams.put("body", "hello there");

emailParams.put("senderEmailAddress", "abcd@example.com");

emailParams.put("senderName", "David Smith");

details.setEmailParams(emailParams);

String[] recipients = { "test@gmail.com", "sample@example.com" };

details.setRecipients(recipients);

List<String> failureList = mailService.sendEmail(details.getTemplatePath(), details.getEmailParams(),details.getRecipients()); //throws null pointer exception

logger.info(""+failureList.size());

if (failureList.isEmpty()) {

logger.info("successfully sent");

} else {

logger.info("failed to deliver");

}

}

}

[Jörg_Hoh]

How do you get access to an instance of the ContactEmailService? Remember that calling the constructor of this class does not cause the injection, but you need to use it via a service reference. Can you post the relevant code which invokes the sendEmail() function?

[arunpatidar]

Hi,

Please check for more info

Email API

or you can send a mail using MessageGatewayService

AEM - Custom Template'd Email 

[tahir1601]

@Component(service = Servlet.class, property = { "sling.servlet.methods=POST",

"sling.servlet.paths=/bin/contactServlet" })

public class ContactServlet extends HttpServlet {

private static final long serialVersionUID = -6506682026701304964L;

Logger logger = LoggerFactory.getLogger(this.getClass());

protected void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

VerifyRecaptcha recaptcha = new VerifyRecaptcha();

String gRecaptchaResponse = request.getParameter("g-recaptcha-response");

String formData = request.getParameter("form-data");

logger.info("formData response" + formData);

String flag = request.getParameter("flag");

if (flag.equalsIgnoreCase("contactus")) {

// boolean verify = recaptcha.verify(gRecaptchaResponse);

// if (verify) {

// logger.info("validated recaptcha");

// }

// else {

// logger.info("recaptcha validation failed");

// }

//

//

ContactEmailService obj = new ContactEmailService();

obj.sendEmail();

}

}

}

[tahir1601]

My bad I created object to call sendemail()

After lot of trial and error
I replaced below

ContactEmailService obj = new ContactEmailService();

obj.sendEmail();

with

@Reference

private ContactEmailService contactEmailService;

contactEmailService.sendEmail();

I was able to get the instance of the emailService

[Jörg_Hoh · Accepted solution]

That's what I was assuming. Thanks for reporting back and confirming that it was indeed this problem.

Jörg

[tahir1601]

Thanks for your input!!