Bugs item #1057118, was opened at 2004-10-29 16:59
Message generated for change (Comment added) made by starksm
You can respond by visiting:
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Category: JBossCMP
Group: v3.2
Status: Open
Resolution: None
Priority: 5
Submitted By: Ivan Parra (ioparra)
Assigned to: Alexey Loubyansky (loubyansky)
Summary: NPE on TableCache while promoting row
Initial Comment:
JBoss3_2_6
with Cache Invalidition
JDK1.4
The system was under heavy load both from normal
means and cache invalidation.
Race condition???
java.lang.NullPointerException
at
org.jboss.ejb.plugins.cmp.jdbc2.schema.TableCache$Cac
hedRow.access$202(TableCache.java:418)
at
org.jboss.ejb.plugins.cmp.jdbc2.schema.TableCache.prom
oteRow(TableCache.java:388)
at
org.jboss.ejb.plugins.cmp.jdbc2.schema.TableCache.getFi
elds(TableCache.java:157)
at
org.jboss.ejb.plugins.cmp.jdbc2.schema.PartitionedTableC
ache.getFields(PartitionedTableCache.java:152)
at
org.jboss.ejb.plugins.cmp.jdbc2.schema.EntityTable$View
.getRowByPk(EntityTable.java:868)
at
org.jboss.ejb.plugins.cmp.jdbc2.schema.EntityTable.loadR
ow(EntityTable.java:444)
at
org.jboss.ejb.plugins.cmp.jdbc2.JDBCStoreManager2.loadE
ntity(JDBCStoreManager2.java:347)
at
org.jboss.ejb.plugins.CMPPersistenceManager.loadEntity
(CMPPersistenceManager.java:338)
at
org.jboss.resource.connectionmanager.CachedConnection
Interceptor.loadEntity
(CachedConnectionInterceptor.java:355)
at
org.jboss.ejb.plugins.EntitySynchronizationInterceptor.inv
oke(EntitySynchronizationInterceptor.java:246)
at
org.jboss.resource.connectionmanager.CachedConnection
Interceptor.invoke
(CachedConnectionInterceptor.java:186)
at
org.jboss.ejb.plugins.EntityReentranceInterceptor.invoke
(EntityReentranceInterceptor.java:116)
at
org.jboss.ejb.plugins.EntityInstanceInterceptor.invoke
(EntityInstanceInterceptor.java:175)
at
org.jboss.ejb.plugins.EntityCreationInterceptor.invoke
(EntityCreationInterceptor.java:54)
at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext
(AbstractTxInterceptor.java:84)
at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransacti
ons(TxInterceptorCMT.java:315)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke
(TxInterceptorCMT.java:148)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke
(SecurityInterceptor.java:111)
at org.jboss.ejb.plugins.LogInterceptor.invoke
(LogInterceptor.java:191)
at
org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invok
e(ProxyFactoryFinderInterceptor.java:122)
at org.jboss.ejb.EntityContainer.internalInvoke
(EntityContainer.java:484)
at org.jboss.ejb.Container.invoke
(Container.java:709)
at
org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke
(BaseLocalProxyFactory.java:419)
at org.jboss.ejb.plugins.local.EntityProxy.invoke
(EntityProxy.java:44)
at $Proxy1224.getName(Unknown Source)
at
com.activereasoning.session.infrastructure.DeviceConfigS
essionBean.updateOrCreateNew
(DeviceConfigSessionBean.java:300)
at sun.reflect.GeneratedMethodAccessor164.invoke
(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke
(Method.java:324)
at
org.jboss.ejb.StatelessSessionContainer$ContainerInterce
ptor.invoke(StatelessSessionContainer.java:683)
at
org.jboss.resource.connectionmanager.CachedConnection
Interceptor.invoke
(CachedConnectionInterceptor.java:186)
at
org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor
.invoke(StatelessSessionInstanceInterceptor.java:72)
at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext
(AbstractTxInterceptor.java:84)
at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransacti
ons(TxInterceptorCMT.java:315)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke
(TxInterceptorCMT.java:148)
at org.jboss.ejb.plugins.AbstractInterceptor.invoke
(AbstractInterceptor.java:94)
at
com.activereasoning.metrics.MetricsInterceptor.invoke
(MetricsInterceptor.java:63)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke
(SecurityInterceptor.java:111)
at org.jboss.ejb.plugins.LogInterceptor.invoke
(LogInterceptor.java:191)
at
org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invok
e(ProxyFactoryFinderInterceptor.java:122)
at
org.jboss.ejb.StatelessSessionContainer.internalInvoke
(StatelessSessionContainer.java:331)
at org.jboss.ejb.Container.invoke
(Container.java:709)
at
org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke
(BaseLocalProxyFactory.java:419)
at
org.jboss.ejb.plugins.local.StatelessSessionProxy.invoke
(StatelessSessionProxy.java:83)
at $Proxy1772.updateOrCreateNew(Unknown
Source)
at
com.activereasoning.probemanager.ver4.converters.Host
ConfigConverter.processCmd
(HostConfigConverter.java:147)
at
com.activereasoning.probemanager.ver4.util.MessageProc
essor.processXMLMesgs(MessageProcessor.java:251)
at
com.activereasoning.probemanager.ver4.util.MessageProc
essor.processMesg(MessageProcessor.java:138)
at
com.activereasoning.probemanager.mesgbeans.MDDataLis
tenerBean.onMessage(MDDataListenerBean.java:190)
at sun.reflect.GeneratedMethodAccessor100.invoke
(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke
(Method.java:324)
at
org.jboss.ejb.MessageDrivenContainer$ContainerIntercept
or.invoke(MessageDrivenContainer.java:458)
at
org.jboss.resource.connectionmanager.CachedConnection
Interceptor.invoke
(CachedConnectionInterceptor.java:186)
at
org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.i
nvoke(MessageDrivenInstanceInterceptor.java:62)
at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext
(AbstractTxInterceptor.java:84)
at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransacti
ons(TxInterceptorCMT.java:282)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke
(TxInterceptorCMT.java:148)
at org.jboss.ejb.plugins.AbstractInterceptor.invoke
(AbstractInterceptor.java:94)
at
com.activereasoning.metrics.MetricsInterceptor.invoke
(MetricsInterceptor.java:63)
at
org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke
(RunAsSecurityInterceptor.java:90)
at org.jboss.ejb.plugins.LogInterceptor.invoke
(LogInterceptor.java:191)
at
org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invok
e(ProxyFactoryFinderInterceptor.java:122)
at
org.jboss.ejb.MessageDrivenContainer.internalInvoke
(MessageDrivenContainer.java:372)
at org.jboss.ejb.Container.invoke
(Container.java:709)
at
org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke
(JMSContainerInvoker.java:914)
at
org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageLi
stenerImpl.onMessage(JMSContainerInvoker.java:1208)
at
com.sonicsw.pso.jboss.SonicMQServerSession.onMessage
(SonicMQServerSession.java:118)
at progress.message.jimpl.Session.kT_(Unknown
Source)
at progress.message.jimpl.Session.run(Unknown
Source)
at
com.sonicsw.pso.jboss.SonicMQServerSession.run
(SonicMQServerSession.java:80)
at
EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.
run(PooledExecutor.java:748)
at java.lang.Thread.run(Thread.java:534)
----------------------------------------------------------------------
Comment By: Scott M Stark (starksm)
Date: 2004-12-29 12:52
Message:
Logged In: YES
user_id=175228
All issues have been moved to http://jira.jboss.com. Existing
issues have been moved. New issues will be closed with this
canned reponse.
----------------------------------------------------------------------
Comment By: Ivan Parra (ioparra)
Date: 2004-11-01 10:04
Message:
Logged In: YES
user_id=812998
OS: Windows 2000 Advanced Server
----------------------------------------------------------------------
Comment By: Ivan Parra (ioparra)
Date: 2004-11-01 10:03
Message:
Logged In: YES
user_id=812998
C:\Active Reasoning\View Point\jre\bin>java -version
java version "1.4.2_05"
Java(TM) 2 Runtime Environment, Standard Edition (build
1.4.2_05-b04)
Java HotSpot(TM) Server VM (build 1.4.2_05-b04, mixed
mode)
----------------------------------------------------------------------
Comment By: Scott M Stark (starksm)
Date: 2004-11-01 09:58
Message:
Logged In: YES
user_id=175228
What is the full jdk version and operation system version here?
Line 388 is the setting of the tail.next value to null:
tail.next = null;
which simply implies that the tail ivar is null here.
Synchronization appears to be handled at a higher level so
there needs to be a check that tail is in fact being locked
correctly.
----------------------------------------------------------------------
Comment By: Ivan Parra (ioparra)
Date: 2004-11-01 09:23
Message:
Logged In: YES
user_id=812998
I knew you'd say that. I noticed that as well and don't
understand. The method "access" isn't even part of the
class. I did research on the "access", here is what I found.
access is used to mark variable names of inner classes.
http://smi-
web.stanford.edu/people/grosso/ucbcourse/95_JustSlides/16
Q: How do inner classess access private state(from
the "outer class" then)?
A: As part of the "preprocessing stage," the compiler also
generates static accessor and mutators.... on the "outer"
class. These methods names like access$0, access$1,
access$2, etcetera taje a single argument(the instance) and
return private variable.
This help?
-Ivan
----------------------------------------------------------------------
Comment By: Alexey Loubyansky (loubyansky)
Date: 2004-10-30 05:06
Message:
Logged In: YES
user_id=543482
I don't know how I can fix this
java.lang.NullPointerException
at
org.jboss.ejb.plugins.cmp.jdbc2.schema.TableCache$Cac
hedRow.access$202(TableCache.java:418)
TableCache.java:418 line in JBoss_3_2_6 is
private class CachedRow
http://cvs.sourceforge.net/viewcvs.py/jboss/jboss/src/main/org/jboss/ejb/plugins/cmp/jdbc2/schema/TableCache.java?rev=1.1.2.13&only_with_tag=JBoss_3_2_6&view=markup
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