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https://issues.apache.org/jira/browse/NIFI-4092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16340196#comment-16340196
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ASF GitHub Bot commented on NIFI-4092:
--------------------------------------
Github user ravipapisetti commented on the issue:
https://github.com/apache/nifi/pull/2365
Hi, We are hitting the same issue with NiFi 1.3. Any workaround how this
could be solved. Interesting to know this happens only in one of the node in
the cluster, even though all nodes are identical. Appreciate any help.
> ClassCastException Warning during cluster sync
> ----------------------------------------------
>
> Key: NIFI-4092
> URL: https://issues.apache.org/jira/browse/NIFI-4092
> Project: Apache NiFi
> Issue Type: Bug
> Affects Versions: 1.3.0
> Reporter: Joseph Gresock
> Assignee: Matt Gilman
> Priority: Major
> Labels: release-notes
> Fix For: 1.5.0
>
>
> This is the strack trace I receive, though I'm not sure it affects anything,
> since the cluster is eventually able to connect.
> 2017-06-20 13:46:44,680 WARN [Reconnect ip-172-31-55-36.ec2.internal:8443]
> o.a.n.c.c.node.NodeClusterCoordinator Problem encountered issuing
> reconnection request to node ip-172-31-55-36.ec2.internal:8443
> java.io.IOException:
> org.apache.nifi.controller.serialization.FlowSerializationException:
> java.lang.ClassCastException:
> org.apache.nifi.web.api.dto.TemplateDTO$JaxbAccessorM_getDescription_setDescription_java_lang_String
> cannot be cast to com.sun.xml.internal.bind.v2.runtime.reflect.Accessor
> at
> org.apache.nifi.persistence.StandardXMLFlowConfigurationDAO.save(StandardXMLFlowConfigurationDAO.java:143)
> at
> org.apache.nifi.controller.StandardFlowService.createDataFlowFromController(StandardFlowService.java:607)
> at
> org.apache.nifi.controller.StandardFlowService.createDataFlowFromController(StandardFlowService.java:100)
> at
> org.apache.nifi.cluster.coordination.node.NodeClusterCoordinator$2.run(NodeClusterCoordinator.java:706)
> at java.lang.Thread.run(Thread.java:748)
> Caused by:
> org.apache.nifi.controller.serialization.FlowSerializationException:
> java.lang.ClassCastException:
> org.apache.nifi.web.api.dto.TemplateDTO$JaxbAccessorM_getDescription_setDescription_java_lang_String
> cannot be cast to com.sun.xml.internal.bind.v2.runtime.reflect.Accessor
> at
> org.apache.nifi.controller.serialization.StandardFlowSerializer.addTemplate(StandardFlowSerializer.java:546)
> at
> org.apache.nifi.controller.serialization.StandardFlowSerializer.addProcessGroup(StandardFlowSerializer.java:203)
> at
> org.apache.nifi.controller.serialization.StandardFlowSerializer.addProcessGroup(StandardFlowSerializer.java:187)
> at
> org.apache.nifi.controller.serialization.StandardFlowSerializer.addProcessGroup(StandardFlowSerializer.java:187)
> at
> org.apache.nifi.controller.serialization.StandardFlowSerializer.serialize(StandardFlowSerializer.java:97)
> at
> org.apache.nifi.controller.FlowController.serialize(FlowController.java:1544)
> at
> org.apache.nifi.persistence.StandardXMLFlowConfigurationDAO.save(StandardXMLFlowConfigurationDAO.java:141)
> ... 4 common frames omitted
> Caused by: java.lang.ClassCastException:
> org.apache.nifi.web.api.dto.TemplateDTO$JaxbAccessorM_getDescription_setDescription_java_lang_String
> cannot be cast to com.sun.xml.internal.bind.v2.runtime.reflect.Accessor
> at
> com.sun.xml.internal.bind.v2.runtime.reflect.opt.OptimizedAccessorFactory.instanciate(OptimizedAccessorFactory.java:190)
> at
> com.sun.xml.internal.bind.v2.runtime.reflect.opt.OptimizedAccessorFactory.get(OptimizedAccessorFactory.java:129)
> at
> com.sun.xml.internal.bind.v2.runtime.reflect.Accessor$GetterSetterReflection.optimize(Accessor.java:388)
> at
> com.sun.xml.internal.bind.v2.runtime.property.SingleElementLeafProperty.<init>(SingleElementLeafProperty.java:77)
> at sun.reflect.GeneratedConstructorAccessor435.newInstance(Unknown
> Source)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> at
> com.sun.xml.internal.bind.v2.runtime.property.PropertyFactory.create(PropertyFactory.java:113)
> at
> com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.<init>(ClassBeanInfoImpl.java:166)
> at
> com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:488)
> at
> com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:305)
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