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How I resolved jakarta.mail.NoSuchProviderException: smtp error

Emma Brown
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#java #dom-events
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I got the jakarta.mail.NoSuchProviderException: smtp while implementing the mail service on spring boot with java 17

Below is the exception stack trace

Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed: org.springframework.mail.MailSendException: Mail server connection failed. Failed messages: jakarta.mail.NoSuchProviderException: smtp; message exceptions (1) are:
Failed message 1: jakarta.mail.NoSuchProviderException: smtp] with root cause

jakarta.mail.NoSuchProviderException: smtp
    at jakarta.mail.Session.getService(Session.java:858) ~[jakarta.mail-2.0.2.jar:na]
    at jakarta.mail.Session.getTransport(Session.java:790) ~[jakarta.mail-2.0.2.jar:na]
    at jakarta.mail.Session.getTransport(Session.java:735) ~[jakarta.mail-2.0.2.jar:na]
    at jakarta.mail.Session.getTransport(Session.java:715) ~[jakarta.mail-2.0.2.jar:na]
    at org.springframework.mail.javamail.JavaMailSenderImpl.getTransport(JavaMailSenderImpl.java:500) ~[spring-context-support-6.1.2.jar:6.1.2]
    at org.springframework.mail.javamail.JavaMailSenderImpl.connectTransport(JavaMailSenderImpl.java:479) ~[spring-context-support-6.1.2.jar:6.1.2]
    at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:399) ~[spring-context-support-6.1.2.jar:6.1.2]
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:350) ~[spring-context-support-6.1.2.jar:6.1.2]
    at org.springframework.mail.javamail.JavaMailSender.send(JavaMailSender.java:101) ~[spring-context-support-6.1.2.jar:6.1.2]
    at com.sp.service.MailService.sendEmail(MailService.java:85) ~[classes/:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:352) ~[spring-aop-6.1.2.jar:6.1.2]

 

 

Solution in a Nutshell

I had this jar used in the pom.xml addition to the spring-boot-starter-mail

<dependency>
    <groupId>com.sun.mail</groupId>
    <artifactId>javax.mail</artifactId>
    <version>1.6.0</version>
</dependency>

I removed this javax.mail jar from the pom.xml and made the project rebuild and it worked fine