Reconnecting the Kie-server to the controller while using the WebSocket connection problem ------------------------------------------------------------------------------------------ Key: DROOLS-4564 URL: https://issues.redhat.com/browse/DROOLS-4564 Project: Drools Issue Type: Bug Components: integration, kie server Affects Versions: 7.24.0.Final Reporter: Marcin Kasza Assignee: Mario Fusco Priority: Major When the kie-server connects to the controller / workbench via web-sockets and this connection fails (e.g., due to network problems), the kie-server will try to reconnect. Reconnect thread started in WebSocketClientImpl (kie-server-controller-websocket-common), fails with NPE with log message: _WebSocketClientImpl: Unable to reconnect to the controller through the Null socket because of null_ NPE is thrown because session.getRequestURI returns NULL value at this.session = container.connectToServer(this, this.config, session.getRequestURI()); In my case kie-server (WebSocketContainer) running on tomcat 8.5