Re: [eclipselink-users] Decrypting error message

[Tom Ware <tom.ware@xxxxxxxxxx>]

Hi Laird,

  What is the full stack trace of the exception?

  Try grepping for "Minor.findAll" instead of the query.  Any results?  What 
happens if you change the name of the "Minor.findall" query?  Does the exception 
still show up?  Does it have the new name?

  Have you tried the 2.2.1 release?  The 2.3 release?  Do you see the problem 
in those releases?

-Tom

Laird Nelson wrote:
> I am trying to understand this error message that pretends to be very 
> clear and helpful.  :-)
>
> Deployment of one of our developers' JPA application fails, and she gets:
>
> Caused by: Exception [EclipseLink-7092] (Eclipse Persistence Services - 
> 2.2.0.v20110202-r8913): 
> _org.eclipse.persistence.exceptions.ValidationException_
>
> Exception Description: Cannot add a query whose types conflict with an 
> existing query. Query To Be Added: [ReadAllQuery(name="Minor.findAll" 
> referenceClass=MinorEntity jpql="SELECT o FROM Minor o")] is named: 
> [Minor.findAll] with arguments [[]].The existing conflicting query: 
> [ReadAllQuery(name="Minor.findAll" referenceClass=MinorEntity 
> jpql="SELECT o FROM Minor o")] is named: [Minor.findAll] with arguments: 
> [[]].
>
> I have grepped our entire codebase, and there is only one named query 
> with the JPQL "SELECT o FROM Minor o".  So it's not like EclipseLink is 
> trying to add two queries that happened to collide.
>
> Instead, this appears like perhaps EclipseLink is trying to add the same 
> query *instance* twice, but I don't see how that's possible.
>
> Does this error message lead to a common recipe for working around it?  
> As in, "oh, right, when you see that error, look for a different 
> syntactically invalid query" or something along those lines?  I can tell 
> you there are no duplicates.
>
> Best,
> Laird
>
>
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