Grails + Spock: NullPointerException when doing addTo * on inline hasMany field
I have a domain class:
class MarketCommoditiesConfiguration extends MarketConfiguration {
static mapWith = "mongo"
static hasMany = ['commodities': Commodity]
static embedded = ['commodities']
...
Execution save
after addToCommodities
throws the following exception.
| java.lang.NullPointerException
at org.grails.datastore.mapping.model.types.Association.getInverseSide(Association.java:71)
at org.grails.datastore.mapping.engine.NativeEntryEntityPersister.handleEmbeddedInstance(NativeEntryEntityPersister.java:1254)
at org.grails.datastore.mapping.engine.NativeEntryEntityPersister.handleEmbeddedInstance(NativeEntryEntityPersister.java:1215)
at org.grails.datastore.mapping.engine.NativeEntryEntityPersister.handleEmbeddedToMany(NativeEntryEntityPersister.java:1188)
at org.grails.datastore.mapping.engine.NativeEntryEntityPersister.persistEntity(NativeEntryEntityPersister.java:1077)
at org.grails.datastore.mapping.engine.NativeEntryEntityPersister.persistEntity(NativeEntryEntityPersister.java:1138)
at org.grails.datastore.mapping.engine.EntityPersister.persist(EntityPersister.java:160)
at org.grails.datastore.mapping.core.AbstractSession.persist(AbstractSession.java:522)
at org.grails.datastore.gorm.GormInstanceApi.doSave(GormInstanceApi.groovy:194)
at org.grails.datastore.gorm.GormInstanceApi.save_closure5(GormInstanceApi.groovy:162)
at org.grails.datastore.mapping.core.DatastoreUtils.execute(DatastoreUtils.java:302)
at org.grails.datastore.gorm.AbstractDatastoreApi.execute(AbstractDatastoreApi.groovy:37)
at org.grails.datastore.gorm.GormInstanceApi.save(GormInstanceApi.groovy:161)
at com.apposit.terra.connect.service.MarketService.addCommodityToMarket(MarketService.groovy:248)
at com.apposit.terra.connect.service.MarketServiceSpec.Test addCommodityToMarket creates a new next month configuration if current month configuration doesn't exist(MarketServiceSpec.groovy:164)
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1 answer
Typing Keyword
inside the @Mock
annotation resolved it. http://grails.1312388.n4.nabble.com/Grails-MongoDb-embedded-collection-causes-nullpointerexception-td4644098.html has more active discussion.
I know this is super old, but a google search brought me here while facing the same problem. Make sure you add @Mock (User) to your unit test class. In my case, I had multiple levels of built-in domain classes and each one had to mock. - clarkdustin
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