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Home » Eclipse Projects » Virgo » Provider org.apache.tomcat.websocket.server.DefaultServerEndpointConfigurator not found(ServiceLoader for jar in repository/ext not working for virgo-tomcat-server-3.7.1.RELEASE)
Provider org.apache.tomcat.websocket.server.DefaultServerEndpointConfigurator not found [message #1778326] Wed, 13 December 2017 07:50 Go to next message
Lukas Höllein is currently offline Lukas HölleinFriend
Messages: 3
Registered: December 2017
Junior Member
Hi,

I hope this is the right place to ask this.

Using: virgo-tomcat-server-3.7.1.RELEASE

In my OSGi-bundle-project I am using 
javax.websocket.server.ServerEndpointConfig$Configurator

for creating websocket-endpoints.

When starting the bundle via its Activator, I am calling
javax.websocket.server.ServerContainer#addEndpoint

which at runtime is processed by the object/method

org.apache.tomcat.websocket.server.WsServerContainer#addEndpoint


This results in the following stacktrace:

[2017-12-13 08:33:59.189] TCP Connection(16)-127.0.0.1 <DE0006E> Start failed for bundle 'my.bundle' version '1.1.2'. org.eclipse.virgo.nano.deployer.api.core.DeploymentException: BundleException
	at org.eclipse.virgo.kernel.install.artifact.internal.bundle.StandardBundleDriver.startBundle(StandardBundleDriver.java:199)
	at org.eclipse.virgo.kernel.install.artifact.internal.bundle.StandardBundleDriver.start(StandardBundleDriver.java:178)
	at org.eclipse.virgo.kernel.install.artifact.internal.bundle.StandardBundleInstallArtifact.doStart(StandardBundleInstallArtifact.java:310)
	at org.eclipse.virgo.kernel.install.artifact.internal.AbstractInstallArtifact.driveDoStart(AbstractInstallArtifact.java:231)
	at org.eclipse.virgo.kernel.install.artifact.internal.bundle.StandardBundleInstallArtifact.start(StandardBundleInstallArtifact.java:299)
	at org.eclipse.virgo.kernel.deployer.core.internal.PipelinedApplicationDeployer.start(PipelinedApplicationDeployer.java:375)
	at org.eclipse.virgo.kernel.deployer.core.internal.PipelinedApplicationDeployer.deploy(PipelinedApplicationDeployer.java:258)
	at org.eclipse.virgo.kernel.deployer.management.StandardDeployer.deploy(StandardDeployer.java:52)
	at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
	at sun.reflect.GeneratedMethodAccessor72.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
	at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:193)
	at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:175)
	at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:117)
	at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:54)
	at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
	at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:138)
	at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:252)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
	at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1471)
	at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
	at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1312)
	at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1404)
	at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:832)
	at sun.reflect.GeneratedMethodAccessor77.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323)
	at sun.rmi.transport.Transport$1.run(Transport.java:200)
	at sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$256(TCPTransport.java:683)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.osgi.framework.BundleException: Exception in my.bundle.Activator.start() of bundle my.bundle.
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:734)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:683)
	at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:381)
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:300)
	at org.eclipse.virgo.nano.core.internal.StandardBundleStarter.start(StandardBundleStarter.java:57)
	at org.eclipse.virgo.nano.core.internal.StandardBundleStarter.start(StandardBundleStarter.java:45)
	at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
	at org.eclipse.gemini.blueprint.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:56)
	at org.eclipse.gemini.blueprint.service.importer.support.internal.aop.ServiceInvoker.invoke(ServiceInvoker.java:60)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.eclipse.gemini.blueprint.service.importer.support.LocalBundleContextAdvice.invoke(LocalBundleContextAdvice.java:57)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
	at com.sun.proxy.$Proxy45.start(Unknown Source)
	at org.eclipse.virgo.kernel.install.artifact.internal.bundle.StandardBundleDriver.startBundle(StandardBundleDriver.java:197)
	... 45 common frames omitted
Caused by: java.util.ServiceConfigurationError: javax.websocket.server.ServerEndpointConfig$Configurator: Provider org.apache.tomcat.websocket.server.DefaultServerEndpointConfigurator not found
	at java.util.ServiceLoader.fail(ServiceLoader.java:239)
	at java.util.ServiceLoader.access$300(ServiceLoader.java:185)
	at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:372)
	at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
	at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
	at javax.websocket.server.ServerEndpointConfig$Configurator.loadDefault(ServerEndpointConfig.java:168)
	at javax.websocket.server.ServerEndpointConfig$Configurator.fetchContainerDefaultConfigurator(ServerEndpointConfig.java:152)
	at javax.websocket.server.ServerEndpointConfig$Builder.<init>(ServerEndpointConfig.java:69)
	at javax.websocket.server.ServerEndpointConfig$Builder.create(ServerEndpointConfig.java:57)
	at org.apache.tomcat.websocket.server.WsServerContainer.addEndpoint(WsServerContainer.java:227)
	at my.bundle.WebSocketServlet.publishEndpoint(WebSocketServlet.java:294)
	at my.bundle.Activator$EndpointPublisherServiceTrackerCustomizer.addingService(Activator.java:26)
	at my.bundle.Activator$EndpointPublisherServiceTrackerCustomizer.addingService(Activator.java:21)
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932)
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:1)
	at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
	at org.osgi.util.tracker.AbstractTracked.trackInitial(AbstractTracked.java:183)
	at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:317)
	at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:261)
	at my.bundle.Activator.start(Activator.java:54)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:711)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:702)
	... 68 common frames omitted


When looking at the StackTrace, I found out that the Provider for the ServiceLoader is located in the .jar file

org.apache.tomcat.websocket_8.5.11.jar

in the path 
%VIRGO%/repository/ext


Looking at the .jar itself its setup looks alright: META-INF/services has the required SLI file and the class itself exists aswell.

And maybe the worst of all: Everything works fine when trying to publish the exact same bundle to a "virgo-tocmat-server-3.7.0.RELEASE" on another PC.

I don't know, maybe some configuration for my local 3.7.1 Installation needs to be fixed.
Can you help me to figure out how to resolve this error?

Thanks and Greetings,
Lukas Höllein

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Re: Provider org.apache.tomcat.websocket.server.DefaultServerEndpointConfigurator not found [message #1778414 is a reply to message #1778326] Thu, 14 December 2017 05:23 Go to previous messageGo to next message
daniel marthaler is currently offline daniel marthalerFriend
Messages: 77
Registered: April 2012
Location: Zürich
Member
Hi Lukas

Indeed, this is the place to ask such questions.

Is it possible that you attach your bundle here, so I can have a look at the problem you are facing.

Regards
Dani

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Re: Provider org.apache.tomcat.websocket.server.DefaultServerEndpointConfigurator not found [message #1778508 is a reply to message #1778414] Fri, 15 December 2017 12:26 Go to previous messageGo to next message
Lukas Höllein is currently offline Lukas HölleinFriend
Messages: 3
Registered: December 2017
Junior Member
Hi Dani,

ok I attached some files.
I hope this helps you to better unterstand my problem.

I have two bundles:
1. Server - requires websocket. Consists of "server-pom.xml", "server-Activator.java"

2. websocket. Consists of "websocket-pom.xml", "EndpointPublisher.java", "WebSocketServlet.java"

The error occurs, when trying to start the "Server" bundle via its activator.
In its activator, the "websocket" bundle is referenced.

In "WebSocketServlet" I created a comment starting with "$ERROR_HERE$".
Thats the line of code where the last code of me gets executed before the "Provider not found" error.

Thanks for your help,
Lukas

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Re: Provider org.apache.tomcat.websocket.server.DefaultServerEndpointConfigurator not found [message #1778509 is a reply to message #1778508] Fri, 15 December 2017 12:37 Go to previous messageGo to next message
daniel marthaler is currently offline daniel marthalerFriend
Messages: 77
Registered: April 2012
Location: Zürich
Member
Thanks,

Can you also upload the generated Manifests? Would make things easier for me ;)

Regards,
Dani

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Re: Provider org.apache.tomcat.websocket.server.DefaultServerEndpointConfigurator not found [message #1778513 is a reply to message #1778509] Fri, 15 December 2017 13:33 Go to previous messageGo to next message
Lukas Höllein is currently offline Lukas HölleinFriend
Messages: 3
Registered: December 2017
Junior Member
Here you go.

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Re: Provider org.apache.tomcat.websocket.server.DefaultServerEndpointConfigurator not found [message #1778696 is a reply to message #1778513] Wed, 20 December 2017 08:58 Go to previous messageGo to next message
daniel marthaler is currently offline daniel marthalerFriend
Messages: 77
Registered: April 2012
Location: Zürich
Member
Hi Lukas

I could not yet spot anything which would cause the effect, that it runs on Virgo 3.7.0 but nor on 3.7.1.
Maybe another Virgo expert will look at this.

Regards,
Dani

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Re: Provider org.apache.tomcat.websocket.server.DefaultServerEndpointConfigurator not found [message #1778756 is a reply to message #1778508] Wed, 20 December 2017 23:12 Go to previous messageGo to next message
Violeta Georgieva is currently offline Violeta GeorgievaFriend
Messages: 11
Registered: October 2016
Junior Member
Lukas Höllein wrote on Fri, 15 December 2017 12:26
Hi Dani,

ok I attached some files.
I hope this helps you to better unterstand my problem.

I have two bundles:
1. Server - requires websocket. Consists of "server-pom.xml", "server-Activator.java"

2. websocket. Consists of "websocket-pom.xml", "EndpointPublisher.java", "WebSocketServlet.java"

The error occurs, when trying to start the "Server" bundle via its activator.
In its activator, the "websocket" bundle is referenced.

In "WebSocketServlet" I created a comment starting with "$ERROR_HERE$".
Thats the line of code where the last code of me gets executed before the "Provider not found" error.

Thanks for your help,
Lukas


Why do you try to provide your own server? Is there any requirement about that?
Virgo Server for Apache Tomcat supports websockets.

Regards,
Violeta

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Re: Provider org.apache.tomcat.websocket.server.DefaultServerEndpointConfigurator not found [message #1778757 is a reply to message #1778756] Wed, 20 December 2017 23:52 Go to previous message
Violeta Georgieva is currently offline Violeta GeorgievaFriend
Messages: 11
Registered: October 2016
Junior Member
Just tested this very simple example (attached) and I am able to see

[2017-12-21 01:43:13.313] INFO  iLogServiceListener@2f7f143d org.osgi.service.log.LogService                                   Bundle websocket_0.0.0, Service 254, ServiceEvent REGISTERED 
[2017-12-21 01:43:13.313] INFO  start-signalling-3           org.eclipse.virgo.medic.eventlog.default                         WE0001I Started web bundle 'websocket' version '0.0.0' with context path '/websocket'. 
[2017-12-21 01:43:13.314] INFO  start-signalling-3           org.eclipse.virgo.medic.eventlog.default                         DE0005I Started bundle 'websocket' version '0.0.0'. 
[2017-12-21 01:43:13.314] INFO  start-signalling-3           o.e.v.k.i.artifact.internal.bundle.BundleThreadContextManager     Thread context class loader 'KernelBundleClassLoader: [bundle=websocket_0.0.0]' popped and set to 'KernelBundleClassLoader: [bundle=websocket_0.0.0]' 
[2017-12-21 01:47:38.612] INFO  tp-nio-127.0.0.1-8080-exec-3 System.out                                                        test.endpoint.Endpoint.onOpen 
[2017-12-21 01:47:38.616] INFO  tp-nio-127.0.0.1-8080-exec-3 System.out                                                        test.endpoint.Endpoint.onMessage 
[2017-12-21 01:47:38.618] INFO  tp-nio-127.0.0.1-8080-exec-8 System.out                                                        test.endpoint.Endpoint.onClose 
[2017-12-21 01:47:39.957] INFO  tp-nio-127.0.0.1-8080-exec-2 System.out                                                        test.endpoint.Endpoint.onOpen 
[2017-12-21 01:47:39.958] INFO  tp-nio-127.0.0.1-8080-exec-5 System.out                                                        test.endpoint.Endpoint.onMessage 
[2017-12-21 01:47:39.964] INFO  tp-nio-127.0.0.1-8080-exec-7 System.out                                                        test.endpoint.Endpoint.onClose


just put the war archive in the pickup folder and that's it

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