CODEWITHSUNDEEP
osgiapache-felixjetty-9
vnagpal
vnagpal

Reputation: 13

OSGi Bundle in Felix - ClassNotFoundException for Jetty class loaded by name

pom.xml:

<Import-Package>
         org.eclipse.jetty.websocket.server,*
</Import-Package>

MANIFEST.MF:

Import-Package: org.eclipse.jetty.websocket.server;version="[9.2,10)"

Exception in Logs:

javax.servlet.ServletException: java.lang.ClassNotFoundException: org.eclipse.jetty.websocket.server.WebSocketServerFactory

Felix Web Console:

Imported Packages org.eclipse.jetty.websocket.server,version=9.2.6 from org.apache.felix.http.jetty (39)

Relevant code in org.eclipse.jetty.websocket.servlet.WebSocketServletFactory:

Class<WebSocketServletFactory> wssf = (Class<WebSocketServletFactory>)loader
                    .loadClass("org.eclipse.jetty.websocket.server.WebSocketServerFactory");

Please help me figure out what I am doing wrong here?

Upvotes: 1

Views: 548

Answers (1)

Alexander
Alexander

Reputation: 553

I've ran into the same problem, and asked on the Felix mailing list. As pointed out by Balazs, it has to do with the "loader" part. The thread at http://www.mail-archive.com/users%40felix.apache.org/msg16222.html contains a URL to some examples in which the ContextClassLoader is used.

With thanks to Paul, basically you need something like this:

// Cache the current classloader
ClassLoader ccl = Thread.currentThread().getContextClassLoader();
// Find the classloader used by the bundle providing jetty
ClassLoader classLoader = jettyBundle.getClassLoader();
// Set the classloader
Thread.currentThread().setContextClassLoader(classLoader);

// Register the servlet
httpService.registerServlet("/servletName", new MyWebSocketServlet(), null, null);         

// Restore the classloader
Thread.currentThread().setContextClassLoader(ccl);

See the examples for more complete code.

Upvotes: 2

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