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Re: [eclipselink-dev] STUCK Threads + @Transient behaviour 
Hi

I tried to update to 2.3.2 as described in the link.
Worked fine except for a ORA-000904 on a jpa-query which seemed to generate invalid sql-statement, I changed the query a bit and now it works.
But in the jpa.log I see warnings like:

[EL Warning]: 2012-03-19 19:07:56.587--Weaver encountered an exception while trying to weave class com.logica.veupublic.model.dokumentarkiv.Dokumentarkiv.  The exception was: java.lang.NoClassDefFoundError: org/eclipse/persistence/internal/jpa/weaving/ClassWeaver

Any idea on howto solve this ?

/Mejar

-----Original Message-----
From: eclipselink-dev-bounces@xxxxxxxxxxx [mailto:eclipselink-dev-bounces@xxxxxxxxxxx] On Behalf Of Tom Ware
Sent: 9. marts 2012 15:46
To: eclipselink-dev@xxxxxxxxxxx
Subject: Re: [eclipselink-dev] STUCK Threads + @Transient behaviour

Hi Mejar,

   Yes.  You can safely upgrade and be supported.  The way you should do that is to use the new EclipseLink as a shared library.  I'll see if I can find a pointer for a prepackaged download of one, and let you know, but the following blog gives some good instructions about how to create one.

http://buttso.blogspot.com/2011/07/plugging-in-later-version-of.html

-Tom

On 09/03/2012 8:58 AM, Singh, Mejar wrote:
> Hi
>
> Thanks for response !
>
> A has  @OneToMany relation to B. LAZY default as I understand B has  
> @ManyToOne relation to A. Eager default as I understand Will this give 
> problems ?
>
> We run on weblogic 10.3.4 with eclipselink 2.1.2.v20101206-r8635 Can 
> we safely upgrade to 2.3.2 and still be Oracle-supported ?
>
> Regards
>   Mejar
>
> -----Original Message-----
> From: eclipselink-dev-bounces@xxxxxxxxxxx 
> [mailto:eclipselink-dev-bounces@xxxxxxxxxxx] On Behalf Of Tom Ware
> Sent: 9. marts 2012 14:48
> To: eclipselink-dev@xxxxxxxxxxx
> Subject: Re: [eclipselink-dev] STUCK Threads + @Transient behaviour
>
> EclipseLink handles cyclic relations by default.  The one area where it may be easy to write code with issues is if neither part of the cycle is of FetchType LAZY.
>
> There should be no issue with calling your isExportEntity() and
> setExportEntity() methods from an EclipseLink point of view.  You seem to be stuck while commiting a transaction - not simply in our set/is code.
>
> What version of EclipseLink are you on?  If you are not on the latest (2.3.2) I suggest trying that version.
>
> -Tom
>
> On 09/03/2012 3:32 AM, Singh, Mejar wrote:
>> Hi
>>
>> I suspect the problem to be related to cyclic relations, any advice 
>> on how to deal with cyclic relations in JPA ?
>>
>> We have two entites A and B, where B has ManytoOne relation to B - 
>> and in the code we have that we go from A->B and then afterwards from 
>> B->A on the ManytoOne relation
>>
>> Regards
>>
>> Mejar
>>
>> *From:*Singh, Mejar
>> *Sent:* 8. marts 2012 15:06
>> *To:* 'eclipselink-dev@xxxxxxxxxxx'
>> *Subject:* STUCK Threads + @Transient behaviour
>>
>> Hi
>>
>> We get STUCK threads, so would like to know if a JPA entity with:
>>
>> @Transient
>>
>> @XmlTransient
>>
>> public boolean isExportEntity() {
>>
>> return exportEntity;
>>
>> }
>>
>> when calling:
>>
>> public void setExportEntity(boolean exportEntity) {
>>
>> this.exportEntity = exportEntity;
>>
>> }
>>
>> will this entity be locked in the L2 cache if we call setExportEntity ?
>>
>> our log is:
>>
>> ]", which is more than the configured time (StuckThreadMaxTime) of "600"
>>
>> seconds. Stack trace:
>>
>> Thread-2281 "[STUCK] ExecuteThread: '340' for queue:
>> 'weblogic.kernel.Default
>>
>> (self-tuning)'"<alive, suspended, sleeping, priority=1, DAEMON>  {
>>
>> java.lang.Thread.sleep(Thread.java:???)
>>
>> org.eclipse.persistence.internal.helper.ConcurrencyManager.releaseDef
>> e
>> rredLock(ConcurrencyManager.java:429)
>>
>> org.eclipse.persistence.internal.identitymaps.CacheKey.releaseDeferre
>> d
>> Lock(CacheKey.java:348)
>>
>> org.eclipse.persistence.internal.descriptors.ObjectBuilder.buildObjec
>> t
>> (ObjectBuilder.java:660)
>>
>> org.eclipse.persistence.internal.descriptors.ObjectBuilder.buildWorki
>> n
>> gCopyCloneNormally(ObjectBuilder.java:587)
>>
>> ]", which is more than the configured time (StuckThreadMaxTime) of "600"
>>
>> seconds. Stack trace:
>>
>> Thread-2287 "[STUCK] ExecuteThread: '346' for queue:
>> 'weblogic.kernel.Default
>>
>> (self-tuning)'"<alive, suspended, blocked, priority=1, DAEMON>  {
>>
>> -- Blocked trying to get lock: java.util.Vector@19ddf650[fat 
>> <mailto:java.util.Vector@19ddf650[fat>  lock]
>>
>> java.util.Vector$1.nextElement(Vector.java:300)
>>
>> org.eclipse.persistence.internal.helper.ConcurrencyManager.isBuildObj
>> e
>> ctOnThreadComplete(ConcurrencyManager.java:347)
>>
>> org.eclipse.persistence.internal.helper.ConcurrencyManager.isBuildObj
>> e
>> ctOnThreadComplete(ConcurrencyManager.java:347)
>>
>> Reproducible: Sometimes
>>
>>
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>> subject to legal privilege. It should not be copied, disclosed to, 
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>> recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.
>>
>>
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> _______________________________________________
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>
> Think green - keep it on the screen.
> This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.
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