Hi,
Running DSpace 7.6.1 with data migrated from DSpace 5.6, logged in as an
administrator, navigating to Access control -> Groups and then accessing a
specific page appears to be stuck "Loading". Developer Tools in the browser
shows a 500 status for
/server/api/eperson/groups/search/byMetadata?page=83&size=5&query=&embed=object
and dspace.log contains:
ERROR e83bd9a9-54f0-485c-888f-28336f741126 0b5cb60f-db73-4c0c-9e9d-9c28193b937f
org.dspace.app.rest.exception.DSpaceApiExceptionControllerAdvice @ An exception
has occurred (status:500)
java.lang.NullPointerException: Cannot invoke
"org.dspace.content.Collection.getID()" because "collection" is null
at
org.dspace.content.CollectionServiceImpl.getDefaultReadGroupName(CollectionServiceImpl.java:939)
~[dspace-api-7.6.1.jar:7.6.1]
at
org.dspace.eperson.GroupServiceImpl.lambda$getParentObject$0(GroupServiceImpl.java:806)
~[dspace-api-7.6.1.jar:7.6.1]
at
java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:178) ~[?:?]
at
java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1602) ~[?:?]
at
java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:129)
~[?:?]
at
java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:527)
~[?:?]
at
java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:513) ~[?:?]
at
java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
~[?:?]
at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150)
~[?:?]
at
java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?]
at
java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:647) ~[?:?]
at
org.dspace.eperson.GroupServiceImpl.getParentObject(GroupServiceImpl.java:807)
~[dspace-api-7.6.1.jar:7.6.1]
at
org.dspace.eperson.GroupServiceImpl.getParentObject(GroupServiceImpl.java:66)
~[dspace-api-7.6.1.jar:7.6.1]
at
org.dspace.app.rest.repository.GroupParentObjectLinkRepository.getParentObject(GroupParentObjectLinkRepository.java:63)
~[classes/:7.6.1]
at
org.dspace.app.rest.repository.GroupParentObjectLinkRepository$$FastClassBySpringCGLIB$$abe50bf3.invoke(<generated>)
~[classes/:7.6.1]
(and so on)
After some experimentation I narrowed down the 500 response to the Anonymous
group, and it only happens with "embed=object". I assume there is something
problematic with the migrated data (I don't see the issue with a fresh
install), but I've been unable to work out what it could be. Any pointers in
the right direction would be gratefully received.
Thanks,
Alex
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