[teiid-issues] [JBoss JIRA] Closed: (TEIID-461) ClassCastException Executing Request on Teiid (Retrieving WSDL from Web Service VDB)

[Ramesh Reddy (JIRA)]

     [ https://jira.jboss.org/jira/browse/TEIID-461?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ramesh Reddy closed TEIID-461.
------------------------------

    Fix Version/s: 6.1.0
       Resolution: Done


There were two interfaces MetadataService and IndexSelectorSource, both were supplying metadata data to the engine. However the engine only knew the service by the MetadataService not the other, but the implementation class, implemented both the interfaces. However, in server there is proxy wrapped around every service, that proxy only knew about the MetadataService not the IndexSelectorService thus the class cast. Moving into one interface fixed the issue.

> ClassCastException Executing Request on Teiid (Retrieving WSDL from Web Service VDB)
> ------------------------------------------------------------------------------------
>
>                 Key: TEIID-461
>                 URL: https://jira.jboss.org/jira/browse/TEIID-461
>             Project: Teiid
>          Issue Type: Bug
>          Components: Server
>    Affects Versions: 6.0.0
>            Reporter: Ted Jones
>            Assignee: Steven Hawkins
>             Fix For: 6.1.0
>
>
> Attempting to retrieve the WSDL from a Web Service VDB, I received the following exception;
> Apr 03, 2009 13:48:35.785 [Worker0_RuntimeMetadataService<tejones-laptop|MMProcess|1121>0|0] ERROR <CONNECTOR|0> Connector worker process failed for atomic-request=6c7905d2-7a40-47d0-ab1b-2bb64ea79717.0.3.0
> java.lang.ClassCastException: $Proxy37 cannot be cast to com.metamatrix.dqp.service.metadata.IndexSelectorSource
> 	at com.metamatrix.connector.metadata.IndexConnector.getMetadataObjectSource(IndexConnector.java:49)
> 	at com.metamatrix.connector.metadata.adapter.ObjectConnection.getMetadataObjectSource(ObjectConnection.java:67)
> 	at com.metamatrix.connector.metadata.adapter.ObjectConnection.createProcedureExecution(ObjectConnection.java:63)
> 	at org.teiid.connector.basic.BasicConnection.createExecution(BasicConnection.java:57)
> 	at org.teiid.dqp.internal.datamgr.impl.ConnectorWorkItem.createExecution(ConnectorWorkItem.java:310)
> 	at org.teiid.dqp.internal.datamgr.impl.SynchConnectorWorkItem.createExecution(SynchConnectorWorkItem.java:100)
> 	at org.teiid.dqp.internal.datamgr.impl.ConnectorWorkItem.process(ConnectorWorkItem.java:151)
> 	at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:44)
> 	at org.teiid.dqp.internal.datamgr.impl.SynchConnectorWorkItem.run(SynchConnectorWorkItem.java:69)
> 	at com.metamatrix.common.queue.WorkerPoolFactory$StatsCapturingSharedThreadPoolExecutor$1.run(WorkerPoolFactory.java:211)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
> Apr 03, 2009 13:48:35.799 [Worker1_QueryProcessorQueue1|0] ERROR <DQP|0> Unexpected exception for request 6c7905d2-7a40-47d0-ab1b-2bb64ea79717.0
> [MetaMatrixComponentException]$Proxy37 cannot be cast to com.metamatrix.dqp.service.metadata.IndexSelectorSource
> 1 [ClassCastException]$Proxy37 cannot be cast to com.metamatrix.dqp.service.metadata.IndexSelectorSource
> 	at org.teiid.dqp.internal.process.DataTierTupleSource.switchBatch(DataTierTupleSource.java:128)
> 	at org.teiid.dqp.internal.process.DataTierTupleSource.nextTuple(DataTierTupleSource.java:89)
> 	at com.metamatrix.query.processor.relational.AccessNode.nextBatchDirect(AccessNode.java:127)
> 	at com.metamatrix.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:247)
> 	at com.metamatrix.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:173)
> 	at com.metamatrix.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:247)
> 	at com.metamatrix.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:173)
> 	at com.metamatrix.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:247)
> 	at com.metamatrix.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:109)
> 	at com.metamatrix.query.processor.QueryProcessor.process(QueryProcessor.java:151)
> 	at com.metamatrix.query.processor.proc.ProcedurePlan.getResults(ProcedurePlan.java:297)
> 	at com.metamatrix.query.processor.proc.ProcedureEnvironment.executePlan(ProcedureEnvironment.java:130)
> 	at com.metamatrix.query.processor.proc.ExecSqlInstruction.process(ExecSqlInstruction.java:93)
> 	at com.metamatrix.query.processor.proc.ProcedurePlan.processProcedure(ProcedurePlan.java:282)
> 	at com.metamatrix.query.processor.proc.ProcedurePlan.nextBatch(ProcedurePlan.java:221)
> 	at com.metamatrix.query.processor.relational.PlanExecutionNode.nextBatchDirect(PlanExecutionNode.java:106)
> 	at com.metamatrix.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:247)
> 	at com.metamatrix.query.processor.relational.ProjectNode.nextBatchDirect(ProjectNode.java:173)
> 	at com.metamatrix.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:247)
> 	at com.metamatrix.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:109)
> 	at com.metamatrix.query.processor.QueryProcessor.process(QueryProcessor.java:151)
> 	at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:265)
> 	at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:211)
> 	at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:44)
> 	at com.metamatrix.common.queue.WorkerPoolFactory$StatsCapturingSharedThreadPoolExecutor$1.run(WorkerPoolFactory.java:211)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> 	at java.lang.Thread.run(Thread.java:619)
> Caused by: java.lang.ClassCastException: $Proxy37 cannot be cast to com.metamatrix.dqp.service.metadata.IndexSelectorSource
> 	at com.metamatrix.connector.metadata.IndexConnector.getMetadataObjectSource(IndexConnector.java:49)
> 	at com.metamatrix.connector.metadata.adapter.ObjectConnection.getMetadataObjectSource(ObjectConnection.java:67)
> 	at com.metamatrix.connector.metadata.adapter.ObjectConnection.createProcedureExecution(ObjectConnection.java:63)
> 	at org.teiid.connector.basic.BasicConnection.createExecution(BasicConnection.java:57)
> 	at org.teiid.dqp.internal.datamgr.impl.ConnectorWorkItem.createExecution(ConnectorWorkItem.java:310)
> 	at org.teiid.dqp.internal.datamgr.impl.SynchConnectorWorkItem.createExecution(SynchConnectorWorkItem.java:100)
> 	at org.teiid.dqp.internal.datamgr.impl.ConnectorWorkItem.process(ConnectorWorkItem.java:151)
> 	at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:44)
> 	at org.teiid.dqp.internal.datamgr.impl.SynchConnectorWorkItem.run(SynchConnectorWorkItem.java:69)
> 	... 4 more

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