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Re: [eclipselink-users] EclipseLink in Glassfish, roundup
|
Gordon,
Not sure if you noticed the subsequent announcement...
I noticed -- thanks! That was very quick.
Unfortunately, M4 still throws Exceptions on deployment, NPE this
time. The stack trace is attached.
On the LAZY relationship issue: This is a hard one. I spent two days
trying to isolate the problem, and didn't succeed. Here are some of my
findings:
- Not all LAZY relationships show up empty
- I tracked down the problem in one case to a single line in my code:
Just before accessing the list, I retrieve a sibling of the list
(referenced by the same entity, otherwise unrelated) from the
persistence context. If I /hold/ the reference, the list comes out
empty. If I retrieve the entity without holding a pointer to the other
entity, the list shows up OK. I couldn't believe this when I
encountered it friday night, but it was reproducible monday morning...
- Even more disturbing: The error occurs in a JUnit test where a
transaction runs for a rather long time and covers the creation and
removal of a lot of entities. If I create 100 entities before
accessing the LAZY list, the problem is there, the test fails. If I
create 10, the list is OK, all's well. The very same code -- the only
difference is the number of entities involved.
- Well then, I thought. Whatever this is, it must be some caching
issue. So I set "eclipselink.cache.type.default" to "NONE" and tried
again -- and got a StackOverflowError when em.find()ing one of the
entities. Scary. I switched back to Essentials and disabled caching
for control -- and there it was, the same stack overflow, with none of
my classes involved: At least, both of them down consistently,
Essentials and EclipseLink.
Of course, I can't be sure I hit the same problem twice with and
without the caching, but anyway: I think I should go after the
StackOverflow before trying anything else. Is there any sort of
mapping known to cause StackOverflow errors at runtime when caching is
disabled?
Thanks a lot & greetings from Berlin,
rv
---
[#|2008-02-11T15:08:37.507+0100|WARNING|sun-appserver9.1|
javax.enterprise.system.core.classloading|
_ThreadID=32;_ThreadName=Thread-104;_RequestID=601205a5-
eae6-4e9b-9508-66ee33fe157e;|Exception [EclipseLink-28018] (Eclipse
Persistence Services - 1.0 (Build SNAPSHOT - 20080207)):
org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit
[ormpersistence] failed.
Internal Exception: java.lang.NullPointerException
javax.persistence.PersistenceException: Exception [EclipseLink-28018]
(Eclipse Persistence Services - 1.0 (Build SNAPSHOT - 20080207)):
org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit
[ormpersistence] failed.
Internal Exception: java.lang.NullPointerException
at
org
.eclipse
.persistence
.internal
.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:806)
at
org
.eclipse
.persistence
.jpa
.PersistenceProvider
.createContainerEntityManagerFactory(PersistenceProvider.java:155)
at
com
.sun
.enterprise
.server.PersistenceUnitLoaderImpl.load(PersistenceUnitLoaderImpl.java:
149)
at
com
.sun
.enterprise
.server.PersistenceUnitLoaderImpl.load(PersistenceUnitLoaderImpl.java:
84)
at
com
.sun
.enterprise
.server.AbstractLoader.loadPersistenceUnits(AbstractLoader.java:898)
at
com
.sun.enterprise.server.ApplicationLoader.doLoad(ApplicationLoader.java:
184)
at
com
.sun
.enterprise
.server.TomcatApplicationLoader.doLoad(TomcatApplicationLoader.java:126)
at com.sun.enterprise.server.AbstractLoader.load(AbstractLoader.java:
244)
at
com
.sun
.enterprise
.server.ApplicationManager.applicationDeployed(ApplicationManager.java:
336)
at
com
.sun
.enterprise
.server.ApplicationManager.applicationDeployed(ApplicationManager.java:
210)
at
com
.sun
.enterprise
.server.ApplicationManager.applicationDeployed(ApplicationManager.java:
645)
at
com
.sun
.enterprise
.admin
.event
.AdminEventMulticaster
.invokeApplicationDeployEventListener(AdminEventMulticaster.java:928)
at
com
.sun
.enterprise
.admin
.event
.AdminEventMulticaster
.handleApplicationDeployEvent(AdminEventMulticaster.java:912)
at
com
.sun
.enterprise
.admin
.event.AdminEventMulticaster.processEvent(AdminEventMulticaster.java:
461)
at
com
.sun
.enterprise
.admin
.event.AdminEventMulticaster.multicastEvent(AdminEventMulticaster.java:
176)
at
com
.sun
.enterprise
.admin
.server
.core
.DeploymentNotificationHelper
.multicastEvent(DeploymentNotificationHelper.java:308)
at
com
.sun
.enterprise
.deployment
.phasing
.DeploymentServiceUtils.multicastEvent(DeploymentServiceUtils.java:226)
at
com
.sun
.enterprise
.deployment
.phasing
.ServerDeploymentTarget.sendStartEvent(ServerDeploymentTarget.java:298)
at
com
.sun
.enterprise
.deployment
.phasing.ApplicationStartPhase.runPhase(ApplicationStartPhase.java:132)
at
com
.sun
.enterprise
.deployment.phasing.DeploymentPhase.executePhase(DeploymentPhase.java:
108)
at
com
.sun
.enterprise
.deployment
.phasing.PEDeploymentService.executePhases(PEDeploymentService.java:919)
at
com
.sun
.enterprise
.deployment.phasing.PEDeploymentService.start(PEDeploymentService.java:
591)
at
com
.sun
.enterprise
.deployment.phasing.PEDeploymentService.start(PEDeploymentService.java:
635)
at
com
.sun
.enterprise
.admin
.mbeans.ApplicationsConfigMBean.start(ApplicationsConfigMBean.java:744)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun
.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun
.reflect
.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
com
.sun
.enterprise.admin.MBeanHelper.invokeOperationInBean(MBeanHelper.java:
375)
at
com
.sun
.enterprise.admin.MBeanHelper.invokeOperationInBean(MBeanHelper.java:
358)
at
com
.sun
.enterprise.admin.config.BaseConfigMBean.invoke(BaseConfigMBean.java:
464)
at
com
.sun
.jmx.mbeanserver.DynamicMetaDataImpl.invoke(DynamicMetaDataImpl.java:
213)
at com.sun.jmx.mbeanserver.MetaDataImpl.invoke(MetaDataImpl.java:220)
at
com
.sun
.jmx
.interceptor
.DefaultMBeanServerInterceptor
.invoke(DefaultMBeanServerInterceptor.java:815)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:
784)
at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source)
at
sun
.reflect
.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
com.sun.enterprise.admin.util.proxy.ProxyClass.invoke(ProxyClass.java:
90)
at $Proxy1.invoke(Unknown Source)
at
com
.sun
.enterprise
.admin.server.core.jmx.SunoneInterceptor.invoke(SunoneInterceptor.java:
304)
at
com
.sun
.enterprise
.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:174)
at
com
.sun
.enterprise
.deployment
.client
.DeploymentClientUtils.startApplication(DeploymentClientUtils.java:145)
at
com
.sun.enterprise.deployment.client.DeployAction.run(DeployAction.java:
537)
at java.lang.Thread.run(Thread.java:613)
Caused by: Exception [EclipseLink-28018] (Eclipse Persistence Services
- 1.0 (Build SNAPSHOT - 20080207)):
org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit
[ormpersistence] failed.
Internal Exception: java.lang.NullPointerException
at
org
.eclipse
.persistence
.exceptions
.EntityManagerSetupException
.predeployFailed(EntityManagerSetupException.java:203)
... 45 more
Caused by: java.lang.NullPointerException
at
org
.eclipse
.persistence
.internal
.jpa.metadata.accessors.OneToOneAccessor.process(OneToOneAccessor.java:
76)
at
org
.eclipse
.persistence
.internal
.jpa
.metadata
.accessors
.RelationshipAccessor.processRelationship(RelationshipAccessor.java:315)
at
org
.eclipse
.persistence
.internal
.jpa
.metadata
.MetadataProject
.processAccessorsWithRelationships(MetadataProject.java:559)
at
org
.eclipse
.persistence
.internal.jpa.metadata.MetadataProject.process(MetadataProject.java:549)
at
org
.eclipse
.persistence
.internal
.jpa
.metadata.MetadataProcessor.processAnnotations(MetadataProcessor.java:
247)
at
org
.eclipse
.persistence
.internal
.jpa
.deployment
.PersistenceUnitProcessor
.processORMetadata(PersistenceUnitProcessor.java:263)
at
org
.eclipse
.persistence
.internal
.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:763)
... 44 more
|#]
