BasicPersistentEntity.addAssociations(…) must not add null values to the collection of associations [DATACMNS-934]

[spring-projects-issues]

David Rodriguez Polo opened DATACMNS-934 and commented

The issue happens when use the same class to define an entity of Spring Data MongoDB and Spring Data Solr, and also have a field with annotation in MongoDB as @DBRef. @DBRef adds the annotation @Reference, when mapping the object to SimpleSolrPersistentEntity, this sets to null the property association on AbstractPersistentProperty. Then, when you make a search with Spring Data Solr and try to get the hasScoreProperty() this throws a NullPointerException.

   at org.springframework.data.mapping.model.BasicPersistentEntity.getPersistentProperty(BasicPersistentEntity.java:266)
at org.springframework.data.solr.core.mapping.SimpleSolrPersistentEntity.getScoreProperty(SimpleSolrPersistentEntity.java:133)
at org.springframework.data.solr.core.mapping.SimpleSolrPersistentEntity.hasScoreProperty(SimpleSolrPersistentEntity.java:124)
at org.springframework.data.solr.core.SolrTemplate.query(SolrTemplate.java:497)
at org.springframework.data.solr.core.SolrTemplate.doQueryForPage(SolrTemplate.java:338)
at org.springframework.data.solr.core.SolrTemplate.queryForPage(SolrTemplate.java:350)
at com.mycompany.engine.solr.repositories.bc.SolrBCDaoImpl.selectObject(SolrBCDaoImpl.java:104)

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Affects: 1.13 M1 (Ingalls), 1.11.6 (Gosling SR6), 1.12.5 (Hopper SR5), 2.0 M1 (Kay)

Issue Links:

• DATASOLR-341 SolrBasicPersistentProperty.isAssociation() should return false

Referenced from: pull request #183

Backported to: 1.13 RC1 (Ingalls), 1.12.6 (Hopper SR6), 1.11.7 (Gosling SR7)

[spring-projects-issues]

Oliver Drotbohm commented

I've just committed and back ported a slightly different fix including a test case. We now log those attempts as they indicate a bug in one of the involved modules. Once DATASOLR-341 gets fixed you shouldn't even see that message anymore