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Posted to users@cxf.apache.org by Richard Stollar <ri...@gmail.com> on 2017/10/19 12:04:31 UTC
ClassLoader
Hello,
Out system uses a custom class-loader but, because of the
stack-trace (below) we receive in some circumstances, I suspect that CXF
does not use our ClassLoader which should be the default by the time we
initialize CXF. We have a *CxfWebServiceServlet* which extends the
*CXFNonSpringServlet* for deploying JaxWS websevices and looking at the
source it uses the BUS to get a ClassLoader derived from the BusExtensions.
How can I ensure that our ClassLoader is always used? Can I push
our ClassLoader into the BUS before we start initializing the servlet?
Do I need to configure/create a BusExtension for this and if so, how? Do
you have any examples or can you point me at some useful documentation?
Here is the exception:
[13:51:13.810+0300] SYSERR javax.xml.ws.WebServiceException:
java.lang.reflect.UndeclaredThrowableException
[13:51:13.811+0300] SYSERR at
org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:375)
[13:51:13.811+0300] SYSERR at
org.apache.cxf.jaxws.EndpointImpl.publish(EndpointImpl.java:255)
[13:51:13.811+0300] SYSERR at
org.apache.cxf.jaxws.spi.ProviderImpl.createAndPublishEndpoint(ProviderImpl.java:136)
[13:51:13.811+0300] SYSERR at
javax.xml.ws.Endpoint.publish(Endpoint.java:240)
[13:51:13.812+0300] SYSERR at
com.foo.server.jetty.servlet.CxfWebServiceServlet.publishCXF(CxfWebServiceServlet.java:77)
... REMOVED LINES GENERATING THE WEB SERVICE CODE AND COMPILE ETC ...
[13:51:13.813+0300] SYSERR at
com.foo.server.jetty.JettyContextListener.contextInitialized(JettyContextListener.java:89)
[13:51:13.814+0300] SYSERR at
org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:800)
[13:51:13.814+0300] SYSERR at
org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:444)
[13:51:13.814+0300] SYSERR at
org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:791)
[13:51:13.814+0300] SYSERR at
org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:294)
[13:51:13.815+0300] SYSERR at
org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349)
[13:51:13.815+0300] SYSERR at
org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1342)
[13:51:13.815+0300] SYSERR at
org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741)
[13:51:13.815+0300] SYSERR at
org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:505)
[13:51:13.815+0300] SYSERR at
com.basis.server.jetty.BBjWebAppContext.doStart(BBjWebAppContext.java:229)
[13:51:13.815+0300] SYSERR at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
[13:51:13.816+0300] SYSERR at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
[13:51:13.816+0300] SYSERR at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
[13:51:13.816+0300] SYSERR at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
[13:51:13.816+0300] SYSERR at
org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:163)
[13:51:13.816+0300] SYSERR at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
[13:51:13.817+0300] SYSERR at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
[13:51:13.817+0300] SYSERR at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
[13:51:13.817+0300] SYSERR at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
[13:51:13.817+0300] SYSERR at
org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:163)
[13:51:13.817+0300] SYSERR at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
[13:51:13.818+0300] SYSERR at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
[13:51:13.818+0300] SYSERR at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
[13:51:13.818+0300] SYSERR at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
[13:51:13.818+0300] SYSERR at
org.eclipse.jetty.server.handler.RequestLogHandler.doStart(RequestLogHandler.java:140)
[13:51:13.818+0300] SYSERR at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
[13:51:13.818+0300] SYSERR at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
[13:51:13.819+0300] SYSERR at
org.eclipse.jetty.server.Server.start(Server.java:387)
[13:51:13.819+0300] SYSERR at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
[13:51:13.819+0300] SYSERR at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
[13:51:13.819+0300] SYSERR at
org.eclipse.jetty.server.Server.doStart(Server.java:354)
[13:51:13.819+0300] SYSERR at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
... REMOVED LINES - SYSTEM START ...
[13:51:13.821+0300] SYSERR Caused by:
java.lang.reflect.UndeclaredThrowableException
[13:51:13.821+0300] SYSERR at
com.sun.proxy.$Proxy25.visitLabel(Unknown Source)
[13:51:13.821+0300] SYSERR at
org.apache.cxf.jaxws.WrapperClassGenerator.createWrapperClass(WrapperClassGenerator.java:213)
[13:51:13.821+0300] SYSERR at
org.apache.cxf.jaxws.WrapperClassGenerator.generate(WrapperClassGenerator.java:122)
[13:51:13.821+0300] SYSERR at
org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.generatedWrapperBeanClass(JaxWsServiceFactoryBean.java:675)
[13:51:13.822+0300] SYSERR at
org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.getExtraClass(JaxWsServiceFactoryBean.java:645)
[13:51:13.822+0300] SYSERR at
org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean.buildServiceFromClass(ReflectionServiceFactoryBean.java:461)
[13:51:13.822+0300] SYSERR at
org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.buildServiceFromClass(JaxWsServiceFactoryBean.java:696)
[13:51:13.822+0300] SYSERR at
org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean.initializeServiceModel(ReflectionServiceFactoryBean.java:527)
[13:51:13.822+0300] SYSERR at
org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean.create(ReflectionServiceFactoryBean.java:261)
[13:51:13.823+0300] SYSERR at
org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.create(JaxWsServiceFactoryBean.java:199)
[13:51:13.823+0300] SYSERR at
org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:102)
[13:51:13.823+0300] SYSERR at
org.apache.cxf.frontend.ServerFactoryBean.create(ServerFactoryBean.java:168)
[13:51:13.823+0300] SYSERR at
org.apache.cxf.jaxws.JaxWsServerFactoryBean.create(JaxWsServerFactoryBean.java:211)
[13:51:13.823+0300] SYSERR at
org.apache.cxf.jaxws.EndpointImpl.getServer(EndpointImpl.java:460)
[13:51:13.823+0300] SYSERR at
org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:338)
[13:51:13.823+0300] SYSERR ... 55 more
[13:51:13.824+0300] SYSERR Caused by:
java.lang.NoSuchMethodException:
org.objectweb.asm.MethodWriter.visitLabel(org.objectweb.asm.Label)
[13:51:13.824+0300] SYSERR at
java.lang.Class.getMethod(Class.java:1786)
[13:51:13.824+0300] SYSERR at
org.apache.cxf.common.util.ReflectionInvokationHandler.invoke(ReflectionInvokationHandler.java:85)
[13:51:13.824+0300] SYSERR ... 70 more
JettyContextListener initializes the CxfWebServiceServlet
--
Best regards,
Richard Stollar
Re: ClassLoader
Posted by Andy McCright <j....@gmail.com>.
Hi Richard,
In OpenLiberty, we have our own subclass of the ExtensionManagerBus - and
we pass in the classloader to it's constructor. See [1].
From the looks of it, you could create your own ExtensionManagerBus
instance in your CxfNonSpringServlet's subclass by overriding the
loadBus(ServletConfig) method. That method should create a new instance of
the ExtensionManagerBus (with your classloader).
Another alternative might be to set the thread's context classloader to
your classloader. The default classloader for the ExtensionManagerBus is
the current thread's context classloader.
Hope this helps,
Andy
[1]
https://github.com/OpenLiberty/open-liberty/blob/integration/dev/com.ibm.ws.jaxrs.2.0.common/src/com/ibm/ws/jaxrs20/bus/LibertyApplicationBus.java
On Thu, Oct 19, 2017 at 7:04 AM, Richard Stollar <ri...@gmail.com>
wrote:
> Hello,
>
> Out system uses a custom class-loader but, because of the stack-trace
> (below) we receive in some circumstances, I suspect that CXF does not use
> our ClassLoader which should be the default by the time we initialize CXF.
> We have a *CxfWebServiceServlet* which extends the *CXFNonSpringServlet*
> for deploying JaxWS websevices and looking at the source it uses the BUS to
> get a ClassLoader derived from the BusExtensions.
>
> How can I ensure that our ClassLoader is always used? Can I push our
> ClassLoader into the BUS before we start initializing the servlet? Do I
> need to configure/create a BusExtension for this and if so, how? Do you
> have any examples or can you point me at some useful documentation?
>
>
> Here is the exception:
>
> [13:51:13.810+0300] SYSERR javax.xml.ws.WebServiceException:
> java.lang.reflect.UndeclaredThrowableException
> [13:51:13.811+0300] SYSERR at
> org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:375)
> [13:51:13.811+0300] SYSERR at
> org.apache.cxf.jaxws.EndpointImpl.publish(EndpointImpl.java:255)
> [13:51:13.811+0300] SYSERR at
> org.apache.cxf.jaxws.spi.ProviderImpl.createAndPublishEndpo
> int(ProviderImpl.java:136)
> [13:51:13.811+0300] SYSERR at
> javax.xml.ws.Endpoint.publish(Endpoint.java:240)
> [13:51:13.812+0300] SYSERR at
> com.foo.server.jetty.servlet.CxfWebServiceServlet.publishCX
> F(CxfWebServiceServlet.java:77)
> ... REMOVED LINES GENERATING THE WEB SERVICE CODE AND COMPILE ETC ...
> [13:51:13.813+0300] SYSERR at
> com.foo.server.jetty.JettyContextListener.contextInitialize
> d(JettyContextListener.java:89)
> [13:51:13.814+0300] SYSERR at
> org.eclipse.jetty.server.handler.ContextHandler.callContext
> Initialized(ContextHandler.java:800)
> [13:51:13.814+0300] SYSERR at
> org.eclipse.jetty.servlet.ServletContextHandler.callContext
> Initialized(ServletContextHandler.java:444)
> [13:51:13.814+0300] SYSERR at
> org.eclipse.jetty.server.handler.ContextHandler.startContex
> t(ContextHandler.java:791)
> [13:51:13.814+0300] SYSERR at
> org.eclipse.jetty.servlet.ServletContextHandler.startContex
> t(ServletContextHandler.java:294)
> [13:51:13.815+0300] SYSERR at
> org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppCo
> ntext.java:1349)
> [13:51:13.815+0300] SYSERR at
> org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppC
> ontext.java:1342)
> [13:51:13.815+0300] SYSERR at
> org.eclipse.jetty.server.handler.ContextHandler.doStart(
> ContextHandler.java:741)
> [13:51:13.815+0300] SYSERR at
> org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:505)
> [13:51:13.815+0300] SYSERR at
> com.basis.server.jetty.BBjWebAppContext.doStart(BBjWebAppCo
> ntext.java:229)
> [13:51:13.815+0300] SYSERR at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(
> AbstractLifeCycle.java:68)
> [13:51:13.816+0300] SYSERR at
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(
> ContainerLifeCycle.java:132)
> [13:51:13.816+0300] SYSERR at
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart
> (ContainerLifeCycle.java:114)
> [13:51:13.816+0300] SYSERR at
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(
> AbstractHandler.java:61)
> [13:51:13.816+0300] SYSERR at
> org.eclipse.jetty.server.handler.ContextHandlerCollection.d
> oStart(ContextHandlerCollection.java:163)
> [13:51:13.816+0300] SYSERR at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(
> AbstractLifeCycle.java:68)
> [13:51:13.817+0300] SYSERR at
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(
> ContainerLifeCycle.java:132)
> [13:51:13.817+0300] SYSERR at
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart
> (ContainerLifeCycle.java:114)
> [13:51:13.817+0300] SYSERR at
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(
> AbstractHandler.java:61)
> [13:51:13.817+0300] SYSERR at
> org.eclipse.jetty.server.handler.ContextHandlerCollection.d
> oStart(ContextHandlerCollection.java:163)
> [13:51:13.817+0300] SYSERR at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(
> AbstractLifeCycle.java:68)
> [13:51:13.818+0300] SYSERR at
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(
> ContainerLifeCycle.java:132)
> [13:51:13.818+0300] SYSERR at
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart
> (ContainerLifeCycle.java:114)
> [13:51:13.818+0300] SYSERR at
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(
> AbstractHandler.java:61)
> [13:51:13.818+0300] SYSERR at
> org.eclipse.jetty.server.handler.RequestLogHandler.doStart(
> RequestLogHandler.java:140)
> [13:51:13.818+0300] SYSERR at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(
> AbstractLifeCycle.java:68)
> [13:51:13.818+0300] SYSERR at
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(
> ContainerLifeCycle.java:132)
> [13:51:13.819+0300] SYSERR at
> org.eclipse.jetty.server.Server.start(Server.java:387)
> [13:51:13.819+0300] SYSERR at
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart
> (ContainerLifeCycle.java:114)
> [13:51:13.819+0300] SYSERR at
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(
> AbstractHandler.java:61)
> [13:51:13.819+0300] SYSERR at
> org.eclipse.jetty.server.Server.doStart(Server.java:354)
> [13:51:13.819+0300] SYSERR at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(
> AbstractLifeCycle.java:68)
> ... REMOVED LINES - SYSTEM START ...
> [13:51:13.821+0300] SYSERR Caused by:
> java.lang.reflect.UndeclaredThrowableException
> [13:51:13.821+0300] SYSERR at
> com.sun.proxy.$Proxy25.visitLabel(Unknown Source)
> [13:51:13.821+0300] SYSERR at
> org.apache.cxf.jaxws.WrapperClassGenerator.createWrapperCla
> ss(WrapperClassGenerator.java:213)
> [13:51:13.821+0300] SYSERR at
> org.apache.cxf.jaxws.WrapperClassGenerator.generate(Wrapper
> ClassGenerator.java:122)
> [13:51:13.821+0300] SYSERR at
> org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.genera
> tedWrapperBeanClass(JaxWsServiceFactoryBean.java:675)
> [13:51:13.822+0300] SYSERR at
> org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.getExt
> raClass(JaxWsServiceFactoryBean.java:645)
> [13:51:13.822+0300] SYSERR at
> org.apache.cxf.wsdl.service.factory.ReflectionServiceFactor
> yBean.buildServiceFromClass(ReflectionServiceFactoryBean.java:461)
> [13:51:13.822+0300] SYSERR at
> org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.buildS
> erviceFromClass(JaxWsServiceFactoryBean.java:696)
> [13:51:13.822+0300] SYSERR at
> org.apache.cxf.wsdl.service.factory.ReflectionServiceFactor
> yBean.initializeServiceModel(ReflectionServiceFactoryBean.java:527)
> [13:51:13.822+0300] SYSERR at
> org.apache.cxf.wsdl.service.factory.ReflectionServiceFactor
> yBean.create(ReflectionServiceFactoryBean.java:261)
> [13:51:13.823+0300] SYSERR at
> org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.create
> (JaxWsServiceFactoryBean.java:199)
> [13:51:13.823+0300] SYSERR at
> org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.
> createEndpoint(AbstractWSDLBasedEndpointFactory.java:102)
> [13:51:13.823+0300] SYSERR at
> org.apache.cxf.frontend.ServerFactoryBean.create(ServerFact
> oryBean.java:168)
> [13:51:13.823+0300] SYSERR at
> org.apache.cxf.jaxws.JaxWsServerFactoryBean.create(JaxWsSer
> verFactoryBean.java:211)
> [13:51:13.823+0300] SYSERR at
> org.apache.cxf.jaxws.EndpointImpl.getServer(EndpointImpl.java:460)
> [13:51:13.823+0300] SYSERR at
> org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:338)
> [13:51:13.823+0300] SYSERR ... 55 more
> [13:51:13.824+0300] SYSERR Caused by:
> java.lang.NoSuchMethodException:
> org.objectweb.asm.MethodWriter.visitLabel(org.objectweb.asm.Label)
> [13:51:13.824+0300] SYSERR at
> java.lang.Class.getMethod(Class.java:1786)
> [13:51:13.824+0300] SYSERR at
> org.apache.cxf.common.util.ReflectionInvokationHandler.invo
> ke(ReflectionInvokationHandler.java:85)
> [13:51:13.824+0300] SYSERR ... 70 more
>
> JettyContextListener initializes the CxfWebServiceServlet
>
>
> --
> Best regards,
>
> Richard Stollar
>