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  1. JBoss Enterprise Application Platform
  2. JBEAP-6432

[GSS](7.0.z) NullPointerException at org.apache.cxf.common.jaxb.JAXBUtils.createJAXBContextProxy

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      0. Extract the attached reproducer cxf-npe-reproducer.tar.gz

      1. Build and deploy two applications

      • helloworld-ws : Hello World JAX-WS Web service Application (based on JBoss EAP QuickStarts)
      • servlet-wsclient : Web Services Client on Servlet

      2. Place the following byteman rule as /tmp/byteman-script.btm
      You can use byteman-script.btm in the attached cxf-npe-reproducer.tar.gz

      RULE org.apache.cxf.common.jaxb.JAXBContextCache$CachedContextAndSchemas_init_ENTRY
CLASS org.apache.cxf.common.jaxb.JAXBContextCache$CachedContextAndSchemas
METHOD <init>
AT ENTRY
IF TRUE
DO
    System.gc();
ENDRULE

      3. Add the following to $JBOSS_HOME/bin/standalone.conf to enable byteman
      Note: Make sure to tune BYTEMAN_HOME to point a byteman install location

      BYTEMAN_RULE=/tmp/byteman-script.btm
BYTEMAN_HOME=/path/to/your/byteman
BYTEMAN_OPTS="-javaagent:$BYTEMAN_HOME/lib/byteman.jar=listener:false,boot:$BYTEMAN_HOME/lib/byteman.jar"
if [ "x$BYTEMAN_RULE" != "x" ]; then
   BYTEMAN_OPTS="${BYTEMAN_OPTS},script:$BYTEMAN_RULE"
fi
BYTEMAN_OPTS="$BYTEMAN_OPTS -Dorg.jboss.byteman.transform.all -Dorg.jboss.byteman.debug"
# BYTEMAN_OPTS="$BYTEMAN_OPTS -Djboss.modules.system.pkgs=org.jboss.byteman"
JAVA_OPTS="$BYTEMAN_OPTS $JAVA_OPTS"

      4. Set IBM JDK 8 as JAVA_HOME. For example:

      export JAVA_HOME=/usr/lib/jvm/java-1.8.0-ibm.x86_64"

      5. Start JBoss EAP 

      ./bin/standalone.sh

      6. Access Web Services Client Servlet 

      curl -v http://localhost:8080/jboss-servlet-wsclient/client
      Show
      0. Extract the attached reproducer cxf-npe-reproducer.tar.gz 1. Build and deploy two applications helloworld-ws : Hello World JAX-WS Web service Application (based on JBoss EAP QuickStarts) servlet-wsclient : Web Services Client on Servlet 2. Place the following byteman rule as /tmp/byteman-script.btm You can use byteman-script.btm in the attached cxf-npe-reproducer.tar.gz RULE org.apache.cxf.common.jaxb.JAXBContextCache$CachedContextAndSchemas_init_ENTRY CLASS org.apache.cxf.common.jaxb.JAXBContextCache$CachedContextAndSchemas METHOD <init> AT ENTRY IF TRUE DO System .gc(); ENDRULE 3. Add the following to $JBOSS_HOME/bin/standalone.conf to enable byteman Note: Make sure to tune BYTEMAN_HOME to point a byteman install location BYTEMAN_RULE=/tmp/byteman-script.btm BYTEMAN_HOME=/path/to/your/byteman BYTEMAN_OPTS= "-javaagent:$BYTEMAN_HOME/lib/byteman.jar=listener: false ,boot:$BYTEMAN_HOME/lib/byteman.jar" if [ "x$BYTEMAN_RULE" != "x" ]; then BYTEMAN_OPTS= "${BYTEMAN_OPTS},script:$BYTEMAN_RULE" fi BYTEMAN_OPTS= "$BYTEMAN_OPTS -Dorg.jboss.byteman.transform.all -Dorg.jboss.byteman.debug" # BYTEMAN_OPTS= "$BYTEMAN_OPTS -Djboss.modules.system.pkgs=org.jboss.byteman" JAVA_OPTS= "$BYTEMAN_OPTS $JAVA_OPTS" 4. Set IBM JDK 8 as JAVA_HOME. For example: export JAVA_HOME=/usr/lib/jvm/java-1.8.0-ibm.x86_64" 5. Start JBoss EAP ./bin/standalone.sh 6. Access Web Services Client Servlet curl -v http: //localhost:8080/jboss-servlet-wsclient/client
    • EAP 7.0.6

    Description

      The following NullPointerException rarely happens in Web Service application.

      This phenomenon occurs when Full GC happens before calling CachedContextAndSchemasInternal#getContext() in a constructor of org.apache.cxf.common.jaxb.JAXBContextCache$CachedContextAndSchemas. WeakReference<JAXBContext> context inside org.apache.cxf.common.jaxb.JAXBContextCache$CachedContextAndSchemasInternal is cleared at the Full GC then CachedContextAndSchemasInternal#getContext() returns null.

      As far as I tested, this issue can not be reproducible with OpenJDK/Oracle JDK but it was reproducible with IBM JDK. 

      ERROR [io.undertow.request] (default task-1) UT005023: Exception handling request to /jboss-servlet-wsclient/client: java.lang.NullPointerException
	at org.apache.cxf.common.jaxb.JAXBUtils.createJAXBContextProxy(JAXBUtils.java:1500)
	at org.apache.cxf.jaxb.JAXBDataBinding.checkForJAXBAnnotations(JAXBDataBinding.java:412)
	at org.apache.cxf.jaxb.JAXBDataBinding.justCheckForJAXBAnnotations(JAXBDataBinding.java:406)
	at org.apache.cxf.jaxb.JAXBDataBinding.initialize(JAXBDataBinding.java:342)
	at org.apache.cxf.service.factory.AbstractServiceFactoryBean.initializeDataBindings(AbstractServiceFactoryBean.java:86)
	at org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean.buildServiceFromWSDL(ReflectionServiceFactoryBean.java:423)
	at org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean.initializeServiceModel(ReflectionServiceFactoryBean.java:525)
	at org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean.create(ReflectionServiceFactoryBean.java:261)
	at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.create(JaxWsServiceFactoryBean.java:199)
	at org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:102)
	at org.apache.cxf.frontend.ClientFactoryBean.create(ClientFactoryBean.java:91)
	at org.apache.cxf.frontend.ClientProxyFactoryBean.create(ClientProxyFactoryBean.java:157)
	at org.apache.cxf.jaxws.JaxWsProxyFactoryBean.create(JaxWsProxyFactoryBean.java:142)
	at org.apache.cxf.jaxws.ServiceImpl.createPort(ServiceImpl.java:493)
	at org.jboss.wsf.stack.cxf.client.ProviderImpl$JBossWSServiceImpl.createPort(ProviderImpl.java:578)
	at org.apache.cxf.jaxws.ServiceImpl.getPort(ServiceImpl.java:343)
	at org.apache.cxf.jaxws.ServiceImpl.getPort(ServiceImpl.java:338)
	at javax.xml.ws.Service.getPort(Service.java:168)
	at org.jboss.as.quickstarts.wshelloworld.Client.<init>(Client.java:44)
	at org.jboss.as.quickstarts.wshelloworld.WSClientServlet.doGet(WSClientServlet.java:97)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
	at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
	at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
	at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
	at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
	at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
	at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
	at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
	at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
	at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:285)
	at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:264)
	at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
	at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:175)
	at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
	at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:802)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1153)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.lang.Thread.run(Thread.java:785)

      Note: this issue is originally reported as https://bugzilla.redhat.com/show_bug.cgi?id=1384856 in EAP 6.4 (CXF 2.7.x). Same issue is still reproducible in EAP 7.0.x (CXF 3.1.x).

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          Bug - A problem that impairs or prevents the functions of the product. JBEAP-6433 [GSS](7.1.0) NullPointerException at org.apache.cxf.common.jaxb.JAXBUtils.createJAXBContextProxy

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Verified
          is incorporated by

          Component Upgrade - A task tracking an update to a bundled component or revision of component upstream of the project. JBEAP-8885 [GSS](7.0.z) Upgrade Apache CXF to 3.1.10 (from 3.1.8)

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Verified
          is related to

          CXF-7166 Loading...

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            People

              rhn-support-asoldano Alessio Soldano
              rhn-support-mmiura Masafumi Miura
              Peter Mackay Peter Mackay
              Peter Mackay Peter Mackay
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                Created:
                Updated:
                Resolved: