How to set up an EventListener on an event from another plugin? Edited

[Tyler Dansby]

I've been trying to set up an EventListener using an AnswerCreatedEvent from the com.atlassian.confluence.plugins.questions package. The class I set up works for core Confluence events, but when I change it to a Questions event, it says it is missing dependencies when I try to upload it and cannot be enabled.

https://docs.atlassian.com/confluence-questions/2.5.4/com/atlassian/confluence/plugins/questions/event/AnswerCreatedEvent.html

@ExportAsService({SampleEventListener.class})
@Named("sampleEventListener")
@Scanned
public class SampleEventListener implements DisposableBean, InitializingBean {

 @ConfluenceImport
 private EventPublisher eventPublisher;

 @Inject
 public SampleEventListener(
 final EventPublisher eventPublisher
) {
 this.eventPublisher = eventPublisher;
 }

/**
 * Called when the plugin has been enabled.
 *
 * @throws Exception
 */
 @Override
 public void afterPropertiesSet() throws Exception {
// Register ourselves with the EventPublisher
 eventPublisher.register(this);
 Utils.log("Listener Initialized.");
 }

// Unregister the listener if the plugin is uninstalled or disabled.
 @Override
 public void destroy() throws Exception {
eventPublisher.unregister(this);
 Utils.log("Listener Un-initialized.");
 }

@EventListener
 public void answerCreatedEvent(final AnswerCreatedEvent event) {
System.out.println("Answer was created!");
 }
}

Here's part of my pom.xml:

<dependency>
    <groupId>com.atlassian.confluence.plugins</groupId>
    <artifactId>confluence-questions</artifactId>
    <version>2.99.111</version>
    <scope>provided</scope>
</dependency>

<Import-Package>
    *;resolution:=optional,
</Import-Package>

This is the log I'm getting when attemping to upload the plugin.

Caused by: java.lang.IllegalStateException: Failed to introspect Class [com.atlassian.confluence.community.listeners.SampleEventListener] from ClassLoader [com.atlassian.confluence.community.confluence-community [305]]
...
Caused by: java.lang.NoClassDefFoundError: com/atlassian/confluence/plugins/questions/event/AnswerCreatedEvent

One other thing to mention is that I did find this article regarding a similar error I was having: https://developer.atlassian.com/server/framework/atlassian-sdk/bundleexception/

I checked the Felix web console as it suggests and was not able to find the questions package being exported.

Any help would be greatly appreciated.