Ava.lang.noclassdeffounderror com sun mail util maillogger

A classic Java error!

The ava.lang.noclassdeffounderror exception is thrown when the Java Virtual Machine (JVM) is unable to find a class (either a Java class or a resource) that it needs to execute a program.

In your case, the error message is:

ava.lang.noclassdeffounderror com.sun.mail.util.MailLogger

This suggests that the JVM is unable to find the com.sun.mail.util.MailLogger class, which is part of the JavaMail API.

Here are a few possible solutions to resolve this issue:

1. Check your JavaMail API version: Make sure you are using a compatible version of JavaMail API. You can check the version by looking at the mail.jar file in your project's classpath. If you are using an older version, try updating to a newer one.
2. Add the JavaMail API to your classpath: Ensure that the mail.jar file is included in your project's classpath. If you are using an IDE like Eclipse or IntelliJ, you can add the JavaMail API as a library to your project.
3. Check for conflicts with other libraries: If you are using other libraries that also provide a MailLogger class, there might be a conflict. Try removing or updating these libraries to see if it resolves the issue.
4. Verify your JavaMail API configuration: Check your JavaMail API configuration files (e.g., mail.properties or mail.xml) to ensure that they are correct and not causing any issues.
5. Try a clean build: Sometimes, a clean build can resolve issues like this. Try cleaning your project and rebuilding it to see if it resolves the issue.

If none of these solutions work, please provide more details about your project, including the Java version, JavaMail API version, and any relevant configuration files or code snippets.