java.lang.NoClassDefFoundError: com/mailgun/client/MailgunClient

[markosski]

Hi there. I'm trying to use mailgun-java in existing project that uses Java 21. Project compiles fine, Intellij detects the package but when executing the code I get the java.lang.NoClassDefFoundError: com/mailgun/client/MailgunClient error that is thrown when configuring client.

MailgunClient.config(config.mailGun().createApi(MailgunMessagesApi.class);

pom.xml

<dependency>
    <groupId>com.mailgun</groupId>
    <artifactId>mailgun-java</artifactId>
    <version>1.1.3</version>
</dependency>

I'm a bit puzzled by this error, considering package seems to be properly included and I can see it in a fat jar.