turcsanyip commented on a change in pull request #4918: URL: https://github.com/apache/nifi/pull/4918#discussion_r600926356
########## File path: nifi-nar-bundles/nifi-websocket-bundle/nifi-websocket-services-jetty/src/main/java/org/apache/nifi/websocket/jetty/JettyWebSocketServer.java ########## @@ -213,6 +214,14 @@ public void configure(WebSocketServletFactory webSocketServletFactory) { webSocketServletFactory.setCreator(this); } + @Override + public void init() throws ServletException { + // Set Component ClassLoader as Thread Context ClassLoader so that jetty-server classes are available to WebSocketServletFactory.Loader + final ClassLoader componentClassLoader = getClass().getClassLoader(); + Thread.currentThread().setContextClassLoader(componentClassLoader); + super.init(); + } Review comment: The class loader for the servlet worker threads can be set on `ServletContextHandler` when you build up the Jetty server / servlets. ``` final ServletContextHandler contextHandler = new ServletContextHandler(); contextHandler.setClassLoader(Thread.currentThread().getContextClassLoader()); ``` (I used the instance class loader here because it was originally in 1.12 but the component class loader can also be used). I'm not sure which one is the right way to set the class loader but using the `ServletContextHandler` API seems to me less "hack". -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org