[jira] Commented: (OPENJPA-1900) ClassCastException when serializing an entity if DetachedStateField=true
[ https://issues.apache.org/jira/browse/OPENJPA-1900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12972130#action_12972130 ] Mark Struberg commented on OPENJPA-1900: Hi Rick! I'm currently compiling, so gimme an hour ;) I'm online in #openjpa on freenode. > ClassCastException when serializing an entity if DetachedStateField=true > > > Key: OPENJPA-1900 > URL: https://issues.apache.org/jira/browse/OPENJPA-1900 > Project: OpenJPA > Issue Type: Bug > Components: kernel >Affects Versions: 2.0.1, 2.1.0 >Reporter: Mark Struberg > Fix For: 2.1.0 > > Attachments: OPENJPA-1900-fix.patch, OPENJPA-1900-test-1.patch > > > When using > value="fetch-groups(DetachedStateField=true)"/> > serializing an entity leads to the following Exception: > java.lang.ClassCastException: org.apache.openjpa.kernel.StateManagerImpl > cannot be cast to org.apache.openjpa.kernel.DetachedStateManager > at org.apache.openjpa.util.Proxies.writeReplace(Proxies.java:147) > at org.apache.openjpa.util.java$util$Date$proxy.writeReplace(Unknown > Source) > at sun.reflect.GeneratedMethodAccessor176.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1032) > at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1107) > at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) > at > org.apache.openjpa.kernel.SingleFieldManager.serialize(SingleFieldManager.java:545) > at > org.apache.openjpa.kernel.StateManagerImpl.writeDetached(StateManagerImpl.java:1478) > at > at.ac.tuwien.tiss.curriculum.be.entities.CurriculumVersion.writeExternal(CurriculumVersion.java) > at > java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1421) > This seems related to OPENJPA-1597 -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (OPENJPA-1900) ClassCastException when serializing an entity if DetachedStateField=true
[ https://issues.apache.org/jira/browse/OPENJPA-1900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12972128#action_12972128 ] Rick Curtis commented on OPENJPA-1900: -- Mark - It looks like I should have read through all of your comments... I added @OneToOne to Annuity.getPreviousAnnuity() and things are looking better now. Thanks, Rick > ClassCastException when serializing an entity if DetachedStateField=true > > > Key: OPENJPA-1900 > URL: https://issues.apache.org/jira/browse/OPENJPA-1900 > Project: OpenJPA > Issue Type: Bug > Components: kernel >Affects Versions: 2.0.1, 2.1.0 >Reporter: Mark Struberg > Fix For: 2.1.0 > > Attachments: OPENJPA-1900-fix.patch, OPENJPA-1900-test-1.patch > > > When using > value="fetch-groups(DetachedStateField=true)"/> > serializing an entity leads to the following Exception: > java.lang.ClassCastException: org.apache.openjpa.kernel.StateManagerImpl > cannot be cast to org.apache.openjpa.kernel.DetachedStateManager > at org.apache.openjpa.util.Proxies.writeReplace(Proxies.java:147) > at org.apache.openjpa.util.java$util$Date$proxy.writeReplace(Unknown > Source) > at sun.reflect.GeneratedMethodAccessor176.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1032) > at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1107) > at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) > at > org.apache.openjpa.kernel.SingleFieldManager.serialize(SingleFieldManager.java:545) > at > org.apache.openjpa.kernel.StateManagerImpl.writeDetached(StateManagerImpl.java:1478) > at > at.ac.tuwien.tiss.curriculum.be.entities.CurriculumVersion.writeExternal(CurriculumVersion.java) > at > java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1421) > This seems related to OPENJPA-1597 -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (OPENJPA-1900) ClassCastException when serializing an entity if DetachedStateField=true
[ https://issues.apache.org/jira/browse/OPENJPA-1900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12971881#action_12971881 ] Rick Curtis commented on OPENJPA-1900: -- Good work on this one. I just looked at your patches and you had to dig pretty deep to figure this out out. I have a few comments for you. I was able to recreate the CCE, but after applying the code fix I fail with a NPE coming from test code[1]. I'm not sure why that field is null but I'm guessing it has something to do with the DetachState setting. If I change fgs to loaded the NPE goes away Are you seeing the same benaviour? Thanks, Rick [1]:407 ann.getPreviousAnnuity().setApprovedAt( new Date() ); -- getPreviousAnnuity() returns null > ClassCastException when serializing an entity if DetachedStateField=true > > > Key: OPENJPA-1900 > URL: https://issues.apache.org/jira/browse/OPENJPA-1900 > Project: OpenJPA > Issue Type: Bug > Components: kernel >Affects Versions: 2.0.1, 2.1.0 >Reporter: Mark Struberg > Fix For: 2.1.0 > > Attachments: OPENJPA-1900-fix.patch, OPENJPA-1900-test-1.patch > > > When using > value="fetch-groups(DetachedStateField=true)"/> > serializing an entity leads to the following Exception: > java.lang.ClassCastException: org.apache.openjpa.kernel.StateManagerImpl > cannot be cast to org.apache.openjpa.kernel.DetachedStateManager > at org.apache.openjpa.util.Proxies.writeReplace(Proxies.java:147) > at org.apache.openjpa.util.java$util$Date$proxy.writeReplace(Unknown > Source) > at sun.reflect.GeneratedMethodAccessor176.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1032) > at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1107) > at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) > at > org.apache.openjpa.kernel.SingleFieldManager.serialize(SingleFieldManager.java:545) > at > org.apache.openjpa.kernel.StateManagerImpl.writeDetached(StateManagerImpl.java:1478) > at > at.ac.tuwien.tiss.curriculum.be.entities.CurriculumVersion.writeExternal(CurriculumVersion.java) > at > java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1421) > This seems related to OPENJPA-1597 -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (OPENJPA-1900) ClassCastException when serializing an entity if DetachedStateField=true
[
https://issues.apache.org/jira/browse/OPENJPA-1900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12966269#action_12966269
]
Mark Struberg commented on OPENJPA-1900:
The Externalizable field gets added if I use the openjpa.DetachStage
fetch-groups(DetachStateField=true)
This is an issues in our test suite currently - it uses different
persistence.xml for enhancing
(${project.build.testOutputDirectory}/META-INF/nopriv_persistence.xml) and
running the tests (org/apache/openjpa/persistence/proxy/persistence1.xml)
Thus my test currently succeeds but only because this isn't a real world
scenario.
PS: took me a while to figure this, but at least I'm now pretty deep into
OpenJPA internals :D
> ClassCastException when serializing an entity if DetachedStateField=true
>
>
> Key: OPENJPA-1900
> URL: https://issues.apache.org/jira/browse/OPENJPA-1900
> Project: OpenJPA
> Issue Type: Bug
> Components: kernel
>Affects Versions: 2.0.1, 2.1.0
>Reporter: Mark Struberg
> Fix For: 2.1.0
>
> Attachments: OPENJPA-1900-test-1.patch
>
>
> When using
> value="fetch-groups(DetachedStateField=true)"/>
> serializing an entity leads to the following Exception:
> java.lang.ClassCastException: org.apache.openjpa.kernel.StateManagerImpl
> cannot be cast to org.apache.openjpa.kernel.DetachedStateManager
> at org.apache.openjpa.util.Proxies.writeReplace(Proxies.java:147)
> at org.apache.openjpa.util.java$util$Date$proxy.writeReplace(Unknown
> Source)
> at sun.reflect.GeneratedMethodAccessor176.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1032)
> at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1107)
> at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
> at
> org.apache.openjpa.kernel.SingleFieldManager.serialize(SingleFieldManager.java:545)
> at
> org.apache.openjpa.kernel.StateManagerImpl.writeDetached(StateManagerImpl.java:1478)
> at
> at.ac.tuwien.tiss.curriculum.be.entities.CurriculumVersion.writeExternal(CurriculumVersion.java)
> at
> java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1421)
> This seems related to OPENJPA-1597
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[jira] Commented: (OPENJPA-1900) ClassCastException when serializing an entity if DetachedStateField=true
[ https://issues.apache.org/jira/browse/OPENJPA-1900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12966249#action_12966249 ] Mark Struberg commented on OPENJPA-1900: think I know the difference between the openjpa-persistence-jdbc and my projects config. I use the openjpa-maven-plugin for enhancing my project and I get the Externalizable interface generated into my enhanced classes. This doesn't happen with the Annuity entities. But the problem above only happens if StateManagerImpl#writeDetached get's invoked on an entity which is linked to multiple other entites... Question: why do I get the Externalizable interface in my entities? > ClassCastException when serializing an entity if DetachedStateField=true > > > Key: OPENJPA-1900 > URL: https://issues.apache.org/jira/browse/OPENJPA-1900 > Project: OpenJPA > Issue Type: Bug > Components: kernel >Affects Versions: 2.0.1, 2.1.0 >Reporter: Mark Struberg > Fix For: 2.1.0 > > Attachments: OPENJPA-1900-test-1.patch > > > When using > value="fetch-groups(DetachedStateField=true)"/> > serializing an entity leads to the following Exception: > java.lang.ClassCastException: org.apache.openjpa.kernel.StateManagerImpl > cannot be cast to org.apache.openjpa.kernel.DetachedStateManager > at org.apache.openjpa.util.Proxies.writeReplace(Proxies.java:147) > at org.apache.openjpa.util.java$util$Date$proxy.writeReplace(Unknown > Source) > at sun.reflect.GeneratedMethodAccessor176.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1032) > at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1107) > at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) > at > org.apache.openjpa.kernel.SingleFieldManager.serialize(SingleFieldManager.java:545) > at > org.apache.openjpa.kernel.StateManagerImpl.writeDetached(StateManagerImpl.java:1478) > at > at.ac.tuwien.tiss.curriculum.be.entities.CurriculumVersion.writeExternal(CurriculumVersion.java) > at > java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1421) > This seems related to OPENJPA-1597 -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (OPENJPA-1900) ClassCastException when serializing an entity if DetachedStateField=true
[ https://issues.apache.org/jira/browse/OPENJPA-1900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12966085#action_12966085 ] Mark Struberg commented on OPENJPA-1900: actually it was my error, forgot to @OneToOne the field ... *slap*, *coffeerefill* > ClassCastException when serializing an entity if DetachedStateField=true > > > Key: OPENJPA-1900 > URL: https://issues.apache.org/jira/browse/OPENJPA-1900 > Project: OpenJPA > Issue Type: Bug > Components: kernel >Affects Versions: 2.0.1, 2.1.0 >Reporter: Mark Struberg > Fix For: 2.1.0 > > Attachments: OPENJPA-1900-test-1.patch > > > When using > value="fetch-groups(DetachedStateField=true)"/> > serializing an entity leads to the following Exception: > java.lang.ClassCastException: org.apache.openjpa.kernel.StateManagerImpl > cannot be cast to org.apache.openjpa.kernel.DetachedStateManager > at org.apache.openjpa.util.Proxies.writeReplace(Proxies.java:147) > at org.apache.openjpa.util.java$util$Date$proxy.writeReplace(Unknown > Source) > at sun.reflect.GeneratedMethodAccessor176.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1032) > at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1107) > at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) > at > org.apache.openjpa.kernel.SingleFieldManager.serialize(SingleFieldManager.java:545) > at > org.apache.openjpa.kernel.StateManagerImpl.writeDetached(StateManagerImpl.java:1478) > at > at.ac.tuwien.tiss.curriculum.be.entities.CurriculumVersion.writeExternal(CurriculumVersion.java) > at > java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1421) > This seems related to OPENJPA-1597 -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (OPENJPA-1900) ClassCastException when serializing an entity if DetachedStateField=true
[ https://issues.apache.org/jira/browse/OPENJPA-1900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12965662#action_12965662 ] Mark Struberg commented on OPENJPA-1900: I was still not able to reproduce this in a unit test, but from debugging my real world app it seems to happen when lazy loaded entities get serialized. > ClassCastException when serializing an entity if DetachedStateField=true > > > Key: OPENJPA-1900 > URL: https://issues.apache.org/jira/browse/OPENJPA-1900 > Project: OpenJPA > Issue Type: Bug > Components: kernel >Affects Versions: 2.0.1, 2.1.0 >Reporter: Mark Struberg > Fix For: 2.1.0 > > > When using > value="fetch-groups(DetachedStateField=true)"/> > serializing an entity leads to the following Exception: > java.lang.ClassCastException: org.apache.openjpa.kernel.StateManagerImpl > cannot be cast to org.apache.openjpa.kernel.DetachedStateManager > at org.apache.openjpa.util.Proxies.writeReplace(Proxies.java:147) > at org.apache.openjpa.util.java$util$Date$proxy.writeReplace(Unknown > Source) > at sun.reflect.GeneratedMethodAccessor176.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1032) > at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1107) > at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) > at > org.apache.openjpa.kernel.SingleFieldManager.serialize(SingleFieldManager.java:545) > at > org.apache.openjpa.kernel.StateManagerImpl.writeDetached(StateManagerImpl.java:1478) > at > at.ac.tuwien.tiss.curriculum.be.entities.CurriculumVersion.writeExternal(CurriculumVersion.java) > at > java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1421) > This seems related to OPENJPA-1597 -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
