[ https://issues.apache.org/jira/brow...action_12519893 ]

Andy Jefferson commented on JDO-517:
------------------------------------

> If a class is persistence-capable, by default fields of a particular type 
are persistent.
> Therefore, to use properties, fields must be marked not persistent.

This is an imposition on the user IMHO. When a property is marked as persist
ent (and should have a field-name attribute defined according to the spec 18
.14 - which they don't in this case) then that should automatically make the
 associated field NotPersis
tent with no need for marking it. You can't persistent both the field and th
e property (jdoSetXXX enhanced methods have to handle field OR property.

I also don't see any NPE. I see
Class org.apache.jdo.tck.pc.companyAnnotatedPC.PCDSInsurance has property fi
eldRepr declared in MetaData, but its setter method doesnt exist in the clas
s!

which is simply due to following JPA policy on persistent fields/properties 
- either all fields, or all properties. So if there is some property it find
s all un-annotated getters and marks those as persistent - but since JDO is 
going a different route it
needs different handling. Will take a while to allow for JDO rules on persis
tent props alongside catering for what we already cater for.


> NPE on enhancement of classes with persistent properties
> --------------------------------------------------------
>
>                 Key: JDO-517
>                 URL: https://issues.apache.org/jira/browse/JDO-517
>             Project: JDO
>          Issue Type: Bug
>          Components: tck2
>    Affects Versions: JDO 2 maintenance release 1
>            Reporter: Michelle Caisse
>            Assignee: Andy Jefferson
>
> To reproduce, edit project.propeties, go to the end of the file, and edit 
out the comment and blank lines so that the classes in the companyAnnotatedP
C package are included in the argument list to the enhancer.
> 11:39:16,031 (main) ERROR [JPOX.Enhancer] - An error was encountered reading t
he specified input files. Please consult the log for details. The following may help
 : Errors were encountered when loading the specified MetaData files and classes. Se
e the n
ested exceptions for details
> Errors were encountered when loading the specified MetaData files and clas
ses. See the nested exceptions for details
> org.jpox.exceptions.JPOXUserException: Errors were encountered when loadin
g the specified MetaData files and classes. See the nested exceptions for de
tails
> 	at org.jpox.metadata.MetaDataManager.initialise(MetaDataManager.java:299)
> 	at org.jpox.enhancer.JPOXEnhancer.getFileMetaDataForInput(JPOXEnhancer.ja
va:724)
> 	at org.jpox.enhancer.JPOXEnhancer.main(JPOXEnhancer.java:533)
> Caused by: java.lang.NullPointerException
> 	at org.jpox.metadata.annotations.JDOAnnotationReader.processFieldAnnotati
ons(JDOAnnotationReader.java:1594)
> 	at org.jpox.metadata.annotations.AbstractAnnotationReader.getMetaDataForC
lass(AbstractAnnotationReader.java:211)
> 	at org.jpox.metadata.annotations.AnnotationManagerImpl.getMetaDataForClas
s(AnnotationManagerImpl.java:133)
> 	at org.jpox.metadata.MetaDataManager.loadAnnotationsForClass(MetaDataMana
ger.java:1729)
> 	at org.jpox.metadata.MetaDataManager.initialise(MetaDataManager.java:265)
> 	... 2 more
> Nested Throwables StackTrace:
> java.lang.NullPointerException
> 	at org.jpox.metadata.annotations.JDOAnnotationReader.processFieldAnnotati
ons(JDOAnnotationReader.java:1594)
> 	at org.jpox.metadata.annotations.AbstractAnnotationReader.getMetaDataForC
lass(AbstractAnnotationReader.java:211)
> 	at org.jpox.metadata.annotations.AnnotationManagerImpl.getMetaDataForClas
s(AnnotationManagerImpl.java:133)
> 	at org.jpox.metadata.MetaDataManager.loadAnnotationsForClass(MetaDataMana
ger.java:1729)
> 	at org.jpox.metadata.MetaDataManager.initialise(MetaDataManager.java:265)
> 	at org.jpox.enhancer.JPOXEnhancer.getFileMetaDataForInput(JPOXEnhancer.ja
va:724)
> 	at org.jpox.enhancer.JPOXEnhancer.main(JPOXEnhancer.java:533)
> java.lang.NullPointerException
> 	at org.jpox.metadata.annotations.JDOAnnotationReader.processFieldAnnotati
ons(JDOAnnotationReader.java:1594)
> 	at org.jpox.metadata.annotations.AbstractAnnotationReader.getMetaDataForC
lass(AbstractAnnotationReader.java:211)
> 	at org.jpox.metadata.annotations.AnnotationManagerImpl.getMetaDataForClas
s(AnnotationManagerImpl.java:133)
> 	at org.jpox.metadata.MetaDataManager.loadAnnotationsForClass(MetaDataMana
ger.java:1729)
> 	at org.jpox.metadata.MetaDataManager.initialise(MetaDataManager.java:265)
> 	at org.jpox.enhancer.JPOXEnhancer.getFileMetaDataForInput(JPOXEnhancer.ja
va:724)
> 	at org.jpox.enhancer.JPOXEnhancer.main(JPOXEnhancer.java:533)

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