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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.


On 09/03/2012 3:32 AM, Singh, Mejar wrote:

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



*From:*Singh, Mejar
*Sent:* 8. marts 2012 15:06
*To:* 'eclipselink-dev@xxxxxxxxxxx'
*Subject:* STUCK Threads + @Transient behaviour


We get STUCK threads, so would like to know if a JPA entity with:



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> {






]", 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]




Reproducible: Sometimes

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