[news.eclipse.rt.eclipselink] Re: Unknown entity type

[Serge <sergeyext@xxxxxxxxx>]

James пишет:
> This is an odd error, it seems your classpath may be corrupt, or have 
> issues.  Are you in a basic JSE environment, or are you using something 
> like Spring or OSGI?

no additional frameworks

> EclipseLink 2.0 has been extensively tested in a JSE environment, so 
> there is something wrong with your configuration.  Is your persistence 
> unit in a jar?  It should be deployed in a jar with the persistence.xml 
> in the META-INF directory and the entity classes inside their correct 
> packages in the jar.

Yes persistence.xml is in jar in META-INF and entity classes also. As 
packaging shouldn't change after switch to other providers and switch to 
el 1.1.2 also and in case of other providers all woks fine in exactrly 
the same project, also Eclipse first log message about successful login 
to persistence unit before fail on Entity class.

> Your error says, "select object(o) from DiscountCode as o"

there may be some issues in named queries, I don't use them in my 
application, I can list my code which use my entity also, see attached 
project (without libraries attached, need derbyclient.jar, 
eclipselink.jar, javax.persistence.jar(jpa 2.0)) with libraries it 
should be enough to use
'ant run'
from command line. or I can attach built project (approx 5M).

> But your code has, "SELECT d FROM DiscountCode d"
>
> So it seems your have your classes on the classpath twice, or something 
> is corrupt in your environment.
may some class be duplicated in eclipselink.jar and 
javax.persistence.jar(2.0)? I see there are same javax.persistence.* 
packages in both but don't know if there are duplicated in classes.

> Perhaps try one of the EclipseLink examples first.
will look tomorrow, also will try to reverify what I wrote above.

> ---
> James

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