[JBoss JIRA] (TEIID-4617) Olap translator: Mondrian ClassNotFoundException moving from v 3.5.0 to 3.12.0
6:28 p.m.
[
https://issues.jboss.org/browse/TEIID-4617?page=com.atlassian.jira.plugin...
]
Steven Hawkins commented on TEIID-4617:
---------------------------------------
I had suspected this was an olap4j dependency issue, but this makes it clear it is not.
This is an issue with how the classloading is being performed by the mondrian driver such
that the translator classloader, and not the driver module classloader, is being used.
Any mondrian version starting at 3.6 will have this issue as they introduced a
ClassResolver class that defaults to the threadcontext classloader rather than using the
class loader of a class in the jar -
https://github.com/pentaho/mondrian/commit/ba9d4dfde5735c169291fb1c7ce3c9...
The thing that seems off here is that I would have thought that the JCA layer would change
the threadcontext classloader.
[~rareddy] is that your expectation as well?
Olap translator: Mondrian ClassNotFoundException moving from v 3.5.0
to 3.12.0
------------------------------------------------------------------------------
Key: TEIID-4617
URL: https://issues.jboss.org/browse/TEIID-4617
Project: Teiid
Issue Type: Bug
Components: Misc. Connectors
Affects Versions: 8.12.8.6_3
Reporter: Jan Stastny
Assignee: Steven Hawkins
Attachments: Screenshot from 2016-12-05 07-49-16.png, mondrian.zip, olap4j.zip
Change of version of Mondrian from 3.5.0 to 3.12.0 causes class not found exception.
{code:plain}
07:44:03,800 WARN [org.teiid.CONNECTOR] (Worker1_QueryProcessorQueue10) Connector worker
process failed for atomic-request=NFuIrbxSPuIu.0.3.3:
org.teiid.translator.TranslatorException: javax.resource.ResourceException: IJ000453:
Unable to get managed connection for java:/mondrianDS
at
org.teiid.translator.olap.OlapExecutionFactory.getConnection(OlapExecutionFactory.java:87)
[translator-olap-8.12.8.6_3-redhat-1.jar:8.12.8.6_3-redhat-1]
at
org.teiid.translator.olap.OlapExecutionFactory.getConnection(OlapExecutionFactory.java:45)
[translator-olap-8.12.8.6_3-redhat-1.jar:8.12.8.6_3-redhat-1]
at org.teiid.translator.ExecutionFactory.getConnection(ExecutionFactory.java:202)
[teiid-api-8.12.8.6_3-redhat-1.jar:8.12.8.6_3-redhat-1]
at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:330)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_102]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[rt.jar:1.8.0_102]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[rt.jar:1.8.0_102]
at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_102]
at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:211)
at com.sun.proxy.$Proxy81.execute(Unknown Source)
at
org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:306)
at
org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:112)
at
org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:108)
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_102]
at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:65)
at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:280)
at
org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119)
at
org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[rt.jar:1.8.0_102]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[rt.jar:1.8.0_102]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_102]
Caused by: java.sql.SQLException: javax.resource.ResourceException: IJ000453: Unable to
get managed connection for java:/mondrianDS
at
org.jboss.jca.adapters.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:151)
at
org.jboss.as.connector.subsystems.datasources.WildFlyDataSource.getConnection(WildFlyDataSource.java:69)
at
org.teiid.translator.olap.OlapExecutionFactory.getConnection(OlapExecutionFactory.java:85)
[translator-olap-8.12.8.6_3-redhat-1.jar:8.12.8.6_3-redhat-1]
... 20 more
Caused by: javax.resource.ResourceException: IJ000453: Unable to get managed connection
for java:/mondrianDS
at
org.jboss.jca.core.connectionmanager.AbstractConnectionManager.getManagedConnection(AbstractConnectionManager.java:410)
at
org.jboss.jca.core.connectionmanager.tx.TxConnectionManagerImpl.getManagedConnection(TxConnectionManagerImpl.java:367)
at
org.jboss.jca.core.connectionmanager.AbstractConnectionManager.allocateConnection(AbstractConnectionManager.java:499)
at
org.jboss.jca.adapters.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:143)
... 22 more
Caused by: javax.resource.ResourceException: IJ000658: Unexpected throwable while trying
to create a connection: null
at
org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreArrayListManagedConnectionPool.getConnection(SemaphoreArrayListManagedConnectionPool.java:454)
at
org.jboss.jca.core.connectionmanager.pool.AbstractPool.getSimpleConnection(AbstractPool.java:457)
at
org.jboss.jca.core.connectionmanager.pool.AbstractPool.getConnection(AbstractPool.java:429)
at
org.jboss.jca.core.connectionmanager.AbstractConnectionManager.getManagedConnection(AbstractConnectionManager.java:344)
... 25 more
Caused by: javax.resource.ResourceException: Could not create connection
at
org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.getLocalManagedConnection(LocalManagedConnectionFactory.java:351)
at
org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:299)
at
org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreArrayListManagedConnectionPool.createConnectionEventListener(SemaphoreArrayListManagedConnectionPool.java:858)
at
org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreArrayListManagedConnectionPool.getConnection(SemaphoreArrayListManagedConnectionPool.java:413)
... 28 more
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException:
mondrian.spi.impl.JndiDataSourceResolver from [Module
"org.jboss.teiid.translator.olap:main" from local module loader @16f65612
(finder: local module finder @311d617d (roots:
/home/jstastny/tmp-workspaces/workspace/modules,/home/jstastny/tmp-workspaces/workspace/modules/system/layers/dv,/home/jstastny/tmp-workspaces/workspace/modules/system/layers/base/.overlays/layer-base-jboss-eap-6.4.9.CP,/home/jstastny/tmp-workspaces/workspace/modules/system/layers/base))]
at
mondrian.util.ClassResolver$AbstractClassResolver.instantiateSafe(ClassResolver.java:84)
at mondrian.rolap.RolapConnection.getDataSourceResolver(RolapConnection.java:471)
at mondrian.rolap.RolapConnection.createDataSource(RolapConnection.java:427)
at mondrian.rolap.RolapConnection.<init>(RolapConnection.java:135)
at mondrian.rolap.RolapConnection.<init>(RolapConnection.java:91)
at mondrian.olap.DriverManager.getConnection(DriverManager.java:113)
at mondrian.olap.DriverManager.getConnection(DriverManager.java:69)
at
mondrian.olap4j.MondrianOlap4jConnection.<init>(MondrianOlap4jConnection.java:162)
at
mondrian.olap4j.FactoryJdbc4Plus$AbstractConnection.<init>(FactoryJdbc4Plus.java:323)
at
mondrian.olap4j.FactoryJdbc41Impl$MondrianOlap4jConnectionJdbc41.<init>(FactoryJdbc41Impl.java:118)
at mondrian.olap4j.FactoryJdbc41Impl.newConnection(FactoryJdbc41Impl.java:32)
at mondrian.olap4j.MondrianOlap4jDriver.connect(MondrianOlap4jDriver.java:97)
at
org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.getLocalManagedConnection(LocalManagedConnectionFactory.java:323)
... 31 more
Caused by: java.lang.ClassNotFoundException: mondrian.spi.impl.JndiDataSourceResolver
from [Module "org.jboss.teiid.translator.olap:main" from local module loader
@16f65612 (finder: local module finder @311d617d (roots:
/home/jstastny/tmp-workspaces/workspace/modules,/home/jstastny/tmp-workspaces/workspace/modules/system/layers/dv,/home/jstastny/tmp-workspaces/workspace/modules/system/layers/base/.overlays/layer-base-jboss-eap-6.4.9.CP,/home/jstastny/tmp-workspaces/workspace/modules/system/layers/base))]
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:213)
[jboss-modules.jar:1.3.7.Final-redhat-1]
at
org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:459)
[jboss-modules.jar:1.3.7.Final-redhat-1]
at
org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:408)
[jboss-modules.jar:1.3.7.Final-redhat-1]
at
org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:389)
[jboss-modules.jar:1.3.7.Final-redhat-1]
at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:134)
[jboss-modules.jar:1.3.7.Final-redhat-1]
at java.lang.Class.forName0(Native Method) [rt.jar:1.8.0_102]
at java.lang.Class.forName(Class.java:348) [rt.jar:1.8.0_102]
at mondrian.util.ClassResolver$AbstractClassResolver.forName(ClassResolver.java:92)
at
mondrian.util.ClassResolver$AbstractClassResolver.instantiateSafe(ClassResolver.java:63)
... 43 more
{code}
But the class is present in the new version of Mondrian too, see attached screenshot with
decompiled jar structure.
One workaround I found was to add dependency into olap translator's module.xml
pointing at the org.mondrian module, which contains the mondrian jar.
But this action is not required when using Mondrian 3.5.0.
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Steven Hawkins (JIRA)