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T
tahir1601
Level 3
June 23, 2019
Solved

@Reference EmailService emailService throwing null

  • June 23, 2019
  • 6 replies
  • 3779 views

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");

}

}

}

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    Best answer by joerghoh

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

    Jörg

    6 replies

    joerghoh
    Adobe Employee
    joerghohAdobe Employee
    Adobe Employee
    June 23, 2019

    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
      Community Advisor
      arunpatidarCommunity Advisor
      Community Advisor
      June 23, 2019

      Hi,

      Please check for more info

      Email API

      or you can send a mail using MessageGatewayService

      AEM - Custom Template'd Email 

      Arun Patidar
      T
      tahir1601Author
      Level 3
      June 24, 2019

      @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();

      }

      }

      }

      T
      tahir1601Author
      Level 3
      June 24, 2019

      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

      joerghoh
      Adobe Employee
      joerghohAdobe EmployeeAccepted solution
      Adobe Employee
      June 24, 2019

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

      Jörg

        T
        tahir1601Author
        Level 3
        June 24, 2019

        Thanks for your input!!

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