CODEWITHSUNDEEP
javaspringspring-bootpom.xmljakarta-mail
MA1
MA1

Reputation: 1086

No provider of jakarta.mail.util.StreamProvider was found

I'm getting the error below. Any idea how to fix this? Spring boot version: 3.3.0. Java version: 17.

Error:

Caused by: java.lang.IllegalStateException: No provider of jakarta.mail.util.StreamProvider was found
at jakarta.mail.util.FactoryFinder.find(FactoryFinder.java:61)
at jakarta.mail.util.StreamProvider.provider(StreamProvider.java:199)
at jakarta.mail.Session.<init>(Session.java:257)
at jakarta.mail.Session.getDefaultInstance(Session.java:383)
at jakarta.mail.Session.getDefaultInstance(Session.java:423)

Java code:

import jakarta.mail.internet.MimeMessage;

MimeMessage mimeMessage = new MimeMessage(Session.getDefaultInstance(new Properties()));

pom.xml:

        <dependency>
            <groupId>jakarta.mail</groupId>
            <artifactId>jakarta.mail-api</artifactId>
            <version>2.1.3</version>
        </dependency>
        <dependency>
            <groupId>com.sun.mail</groupId>
            <artifactId>jakarta.mail</artifactId>
            <version>2.0.1</version>
        </dependency>

Upvotes: 2

Views: 2448

Answers (3)

Bartosz Popiela
Bartosz Popiela

Reputation: 1051

If you get the following exception

java.lang.ClassCastException: class com.sun.mail.handlers.text_html cannot be cast to class jakarta.activation.DataContentHandler (com.sun.mail.handlers.text_html and jakarta.activation.DataContentHandler are in unnamed module of loader 'app')

it means that you have a jar on your classpath (possibly com.sun.mail:mailapi) which contains /META-INF/mailcap.default or /META-INF/mailcap with legacy Sun packages, .e.g

text/plain;;        x-java-content-handler=com.sun.mail.handlers.text_plain
text/html;;         x-java-content-handler=com.sun.mail.handlers.text_html
text/xml;;          x-java-content-handler=com.sun.mail.handlers.text_xml
multipart/*;;       x-java-content-handler=com.sun.mail.handlers.multipart_mix

You need to exclude this dependency and use org.eclipse.agnus:agnus-mail instead.

Upvotes: 0

jmehrens
jmehrens

Reputation: 11065

I tried to replace the dependency, but I'm getting this error now. java.lang.ClassCastException: class com.sun.mail.handlers.text_html cannot be cast to class jakarta.activation.DataContentHandler (com.sun.mail.handlers.text_html and jakarta.activation.DataContentHandler are in unnamed module of loader 'app')

Don't mix the old activation.jar with the new jaf-api and angus-activation jars. There is a bug where mixing the old com.sun classes with the org.eclipse classes doesn't work correctly. See Using Jakarta mail and Javamail in the same runtime.

The 4 dependencies you want are:

<dependency>
  <groupId>jakarta.activation</groupId>
  <artifactId>jakarta.activation-api</artifactId>
  <version>2.1.3</version>
</dependency>
<dependency>
  <groupId>org.eclipse.angus</groupId>
  <artifactId>angus-activation</artifactId>
  <version>2.0.2</version>
</dependency>

<dependency>
  <groupId>jakarta.mail</groupId>
  <artifactId>jakarta.mail-api</artifactId>
  <version>2.1.3</version>
</dependency>
<dependency>
  <groupId>org.eclipse.angus</groupId>
  <artifactId>angus-mail</artifactId>
  <version>2.0.3</version>
</dependency>

Upvotes: 1

Hantsy
Hantsy

Reputation: 9321

Eclipse angus-mail is the successor of the sum mail impl(com.sun.mail:jakarta-mail), replace your sun mail dependency with the following.

<dependency>
    <groupId>org.eclipse.angus</groupId>
    <artifactId>angus-mail</artifactId>
    <version>2.0.3</version>
</dependency>

And you also need jakarta-acitivation in the dependencies when using Jakarta Mail API.

Check my example with the custom config from scratch without Spring Boot: https://github.com/hantsy/spring6-sandbox/blob/master/mail/

But for Spring Boot users, the simplest way is to utilize mail starter, and inject JavaMailSender directly into your application to send an email.

Upvotes: 0

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