How can I troubleshoot Java deployment issues?

I'm having trouble deploying my Java application. What should I check first?

First, check your server logs for any error messages. They can provide clues about what went wrong.

I found a 'ClassNotFoundException'. What does that mean?

A 'ClassNotFoundException' usually means that the Java class you're trying to use isn't in the classpath. Make sure it's included.

How can I add a class to the classpath?

You can add a class to the classpath by using the '-cp' option when running your Java application or by setting the CLASSPATH environment variable.

What if I'm using a build tool like Maven?

If you're using Maven, ensure that the dependency is correctly defined in your pom.xml file and run mvn clean install to update your project.