Hi Richard, Did you see a refresh when you install feature TWO ?
Do you see org.atmosphere.cpr import in vaadin server bundle or is it a dynamic import ? Regards JB > Le 18 juin 2021 à 18:21, Richard Hierlmeier <[email protected]> a > écrit : > > > I have a strange error in a Vaadin application running in Karaf 4.3.1. I have > two features, that use Vaadin. Feature ONE works fine. When feature TWO is > deployed I get the following error when accessing the Vaadin UI: > > java.lang.NoClassDefFoundError: org/atmosphere/cpr/AtmosphereHandler > at > com.vaadin.server.VaadinServletService.createRequestHandlers(VaadinServletService.java:68) > at com.vaadin.server.VaadinService.init(VaadinService.java:219) > at > com.vaadin.server.VaadinServlet.createServletService(VaadinServlet.java:380) > at com.vaadin.server.VaadinServlet.init(VaadinServlet.java:210) > at de.hierlmeier.karaf.vaadinsample.UIServlet.init(UIServlet.java:44) > at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:624) > at org.eclipse.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:478) > at org.eclipse.jetty.servlet.ServletHolder.prepare(ServletHolder.java:751) > at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:545) > at > org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) > at > org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) > ... > at java.lang.Thread.run(Thread.java:748) > Caused by: java.lang.ClassNotFoundException: > org.atmosphere.cpr.AtmosphereHandler not found by com.vaadin.server [159] > at > org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1565) > at > org.apache.felix.framework.BundleWiringImpl.access$300(BundleWiringImpl.java:78) > at > org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1950) > at java.lang.ClassLoader.loadClass(ClassLoader.java:357) > ... 39 more > > I debugged the code down to the class BundleWiringImpl and found out that > when feature TWO is deployed, then the package org.atmosphere.cpr is no > longer in the m_importedPkgs Variable of BundleWiringImpl instance of bundle > 159. > > However the Karaf console tells me that the import is available: > > de@root()> imports -b 159 | grep org.atmosphere.cpr > org.atmosphere.cpr | [2.4.30.vaadin3,) | resolved > | 159 | com.vaadin.server > > The bundle that exports org.atmosphere.cpr is also available: > > de@root()> exports | grep org.atmosphere.cpr > org.atmosphere.cpr > | 2.4.30.vaadin3 | 155 | > com.vaadin.external.atmosphere.runtime > > > > Regards > > Richard > > > > > > > > >
