[CXF-8943] Adding a listener for Container events is not working on Jetty 9

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.6.2
• Fix Version/s: 3.6.3

Environment

Spring Boot 2.7
Camel 3.21.1
CXF 3.6.2

• Estimated Complexity: Unknown
• Assignee: Andriy Redko
• Reporter: Ruslan Hryn
• Created: 10/Oct/23 17:08
• Updated: 18/Nov/23 16:34
• Resolved: 18/Nov/23 16:34

Description

Adding a listener for Container events is not working on Jetty 9

For example. 

Add listener using JettyHTTPServerEngine

@Bean
public JettyHTTPServerEngineFactory jettyHTTPServerEngineFactory() {

    JettyHTTPServerEngineFactory engineFactory = new JettyHTTPServerEngineFactory();

    JettyHTTPServerEngine engine = new JettyHTTPServerEngine(
            new Container.Listener() {
                @Override
                public void beanAdded(Container parent, Object child) {
                    //
                }

                @Override
                public void beanRemoved(Container parent, Object child) {
                    //
                }
            },
            "localhost",
            8080);

    engineFactory.setEnginesList(Collections.singletonList(engine));

    return engineFactory;
}

The JettyHTTPServerEngine can't add this listener after the start of the server 
because Server class does not implement addEventListener method directly, this method comes from the parent class.
Therefore 
ReflectionUtil.getDeclaredMethods(container.getClass()) does not return the method addEventListener because this call does not consider methods from parent classes.
 
The issue was caused by this commit https://github.com/apache/cxf/commit/2ff109358027653d1afd6f252cf6f25048cafbb9

 

Issue Links

• links to: GitHub Pull Request #1478