Hi
Thank you for your reply. Below you can find the stacktrace. https://stackoverflow.com/questions/50104235/wso2-mqtt-subprotocol-handler java.lang.NoClassDefFoundError: org/wso2/carbon/inbound/endpoint/protocol/websocket/AbstractSubprotocolHandler at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:188) at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClassHoldingLock(ClasspathManager.java:638) at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:613) at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:574) at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:492) at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:465) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216) at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:395) at org.eclipse.osgi.internal.loader.SingleSourcePackage.loadClass(SingleSourcePackage.java:35) at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:452) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.wso2.carbon.inbound.endpoint.protocol.websocket.SubprotocolBuilderUtil.stringToSubprotocolHandlers(SubprotocolBuilderUtil.java:89) at org.wso2.carbon.inbound.endpoint.protocol.websocket.management.WebsocketEndpointManager.startListener(WebsocketEndpointManager.java:133) at org.wso2.carbon.inbound.endpoint.protocol.websocket.management.WebsocketEndpointManager.startEndpoint(WebsocketEndpointManager.java:74) at org.wso2.carbon.inbound.endpoint.protocol.websocket.InboundWebsocketListener.init(InboundWebsocketListener.java:52) at org.apache.synapse.inbound.InboundEndpoint.init(InboundEndpoint.java:79) at org.wso2.carbon.inbound.CarbonInboundManagementService.updateInboundEndpoint(CarbonInboundManagementService.java:226) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:212) at org.apache.axis2.rpc.receivers.RPCInOnlyMessageReceiver.invokeBusinessLogic(RPCInOnlyMessageReceiver.java:66) at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:110) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180) at org.apache.axis2.transport.local.LocalTransportReceiver.processMessage(LocalTransportReceiver.java:169) at org.apache.axis2.transport.local.LocalTransportReceiver.processMessage(LocalTransportReceiver.java:82) at org.wso2.carbon.core.transports.local.CarbonLocalTransportSender.finalizeSendWithToAddress(CarbonLocalTransportSender.java:45) at org.apache.axis2.transport.local.LocalTransportSender.invoke(LocalTransportSender.java:77) at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442) at org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:430) at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:225) at org.apache.axis2.client.OperationClient.execute(OperationClient.java:149) at org.wso2.carbon.inbound.stub.InboundAdminStub.updateInboundEndpoint(InboundAdminStub.java:1708) at org.wso2.carbon.inbound.ui.internal.InboundManagementClient.updteInboundEndpoint(InboundManagementClient.java:333) at org.apache.jsp.inbound.updateInbound_002dajaxprocessor_jsp._jspService(updateInbound_002dajaxprocessor_jsp.java:247) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.wso2.carbon.ui.JspServlet.service(JspServlet.java:155) at org.wso2.carbon.ui.TilesJspServlet.service(TilesJspServlet.java:80) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.eclipse.equinox.http.helper.ContextPathServletAdaptor.service(ContextPathServletAdaptor.java:37) at org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61) at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:128) at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:68) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:68) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.wso2.carbon.ui.filters.cache.URLBasedCachePreventionFilter.doFilter(URLBasedCachePreventionFilter.java:57) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.owasp.csrfguard.CsrfGuardFilter.doFilter(CsrfGuardFilter.java:88) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.wso2.carbon.ui.filters.CSRFPreventionFilter.doFilter(CSRFPreventionFilter.java:88) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.wso2.carbon.ui.filters.CRLFPreventionFilter.doFilter(CRLFPreventionFilter.java:61) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.wso2.carbon.tomcat.ext.filter.CharacterSetFilter.doFilter(CharacterSetFilter.java:61) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.filters.HttpHeaderSecurityFilter.doFilter(HttpHeaderSecurityFilter.java:120) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.wso2.carbon.tomcat.ext.valves.CompositeValve.continueInvocation(CompositeValve.java:99) at org.wso2.carbon.tomcat.ext.valves.CarbonTomcatValve$1.invoke(CarbonTomcatValve.java:47) at org.wso2.carbon.webapp.mgt.TenantLazyLoaderValve.invoke(TenantLazyLoaderValve.java:57) at org.wso2.carbon.tomcat.ext.valves.TomcatValveContainer.invokeValves(TomcatValveContainer.java:47) at org.wso2.carbon.tomcat.ext.valves.CompositeValve.invoke(CompositeValve.java:62) at org.wso2.carbon.tomcat.ext.valves.CarbonStuckThreadDetectionValve.invoke(CarbonStuckThreadDetectionValve.java:159) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962) at org.wso2.carbon.tomcat.ext.valves.CarbonContextCreatorValve.invoke(CarbonContextCreatorValve.java:57) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:452) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1087) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1760) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1719) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.ClassNotFoundException: org.wso2.carbon.inbound.endpoint.protocol.websocket.AbstractSubprotocolHandler cannot be found by WSO2dropins_1.0_1.0.0 at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) From: Madhawa Gunasekara <madha...@wso2.com> Sent: Wednesday, May 2, 2018 3:42 PM To: nico...@lminds.com Cc: WSO2 Developers' List <dev@wso2.org> Subject: Re: [Dev] org.wso2.carbon.inbound.endpoint.protocol.websocket.AbstractSubprotocolHandler Hi Nicolas, Can you provide the exact stack trace please? Thanks, Madhawa On Wed, May 2, 2018 at 10:27 AM, <nico...@lminds.com <mailto:nico...@lminds.com> > wrote: Hi Guys I’m trying to develop a sub protocol handler for mqtt over websocket. I’m getting NoClassDefFound errors, probably because the versions in my pom are not correct. Can anyone help me to find the right versions? I’m using: WSO2 EI Version 6.1.1 Thx <http://www.lminds.com/> Nicolas Verhaert [LINKED MINDS] +32 (0) 471 99 78 25 <http://www.lminds.com/> www.lminds.com _______________________________________________ Dev mailing list Dev@wso2.org <mailto:Dev@wso2.org> http://wso2.org/cgi-bin/mailman/listinfo/dev -- Madhawa Gunasekara Senior Software Engineer WSO2 Inc.; <http://wso2.com/> http://wso2.com lean.enterprise.middleware mobile: +94 719411002 <tel:+94+719411002> blog: http://madhawa-gunasekara.blogspot.com linkedin: http://lk.linkedin.com/in/mgunasekara
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