The com.ibm.websphere.wsoc.WsWsocServerContainer.doUpgrade(HttpServletRequest, HttpServletResponse,
ServerEndpointConfig, java.util.Map<String,​String>) method is deprecated. It is replaced by the
new Jakarta WebSocket 2.1 specification jakarta.websocket.server.ServerContainer.upgradeHttpToWebSocket(
Object, Object, ServerEndpointConfig, java.util.Map<String,​String>) method.
This rule has an automated fix to replace the deprecated method. Copy the custom configuration to your application build file to enable the fix automation.
For more Jakarta 10 migration information, see Differences between Jakarta WebSocket 2.1 and 2.0.
Also, see the WsWsocServerContainer Javadoc and Jakarta WebSocket 2.1 Javadoc.