dev.morphia.mapping.lazy.proxy.ReferenceException: Referenced 'Engine' entity could not be found during a fetch. #1934

NOTiFYcouk · 2022-06-30T18:20:54Z

NOTiFYcouk
Jun 30, 2022

Trying to retrieve an 'entity':

From EJB:

Query<Motorcycle> query = datastore.find(Motorcycle.class);
List<Motorcycle> motorcyclesList = query.iterator().toList();

Entity:
public Motorcycle(String manufacturer, // 1 OK
    String model, // 2 OK
    String modelType, // 3 OK
    String typesOf, // 4 OK
    Date dateProductionStarted, // 5 OK
    Date dateProductionEnded, // 6 OK

    @Reference("engine")
    private Engine engine;

    Engine engine) { // ERROR

First Entity (Engine)

@Entity(value = "engine", useDiscriminator = false)
@Indexes(@Index(options = @IndexOptions(name = "engine")))
public class Engine {
   ...
   @Id
   private ObjectId id;
   ...
}:

Gives:

ReferenceException: Referenced 'Engine' entity could not be found during a fetch.

18:20:23,120 INFO  [com.gostophandle.ejb.MotorcyclesEJB] (ServerService Thread Pool -- 94) ***** MotorcyclesEJB init exception = {}: dev.morphia.mapping.lazy.proxy.ReferenceException: Referenced 'Engine' entity could not be found during a fetch.
	at deployment.GoStopHandle.ear//dev.morphia.mapping.experimental.SingleReference.get(SingleReference.java:83)
	at deployment.GoStopHandle.ear//dev.morphia.mapping.codec.references.ReferenceCodec.fetch(ReferenceCodec.java:352)
	at deployment.GoStopHandle.ear//dev.morphia.mapping.codec.references.ReferenceCodec.decode(ReferenceCodec.java:184)
	at deployment.GoStopHandle.ear//org.bson.codecs.DecoderContext.decodeWithChildContext(DecoderContext.java:96)
	at deployment.GoStopHandle.ear//dev.morphia.mapping.codec.pojo.EntityDecoder.decodeModel(EntityDecoder.java:58)
	at deployment.GoStopHandle.ear//dev.morphia.mapping.codec.pojo.EntityDecoder.decodeProperties(EntityDecoder.java:79)
	at deployment.GoStopHandle.ear//dev.morphia.mapping.codec.pojo.EntityDecoder.decode(EntityDecoder.java:38)
	at deployment.GoStopHandle.ear//dev.morphia.mapping.codec.pojo.MorphiaCodec.decode(MorphiaCodec.java:69)
	at deployment.GoStopHandle.ear//dev.morphia.mapping.codec.pojo.EntityDecoder.decode(EntityDecoder.java:43)
	at deployment.GoStopHandle.ear//dev.morphia.mapping.codec.pojo.MorphiaCodec.decode(MorphiaCodec.java:69)
	at deployment.GoStopHandle.ear//com.mongodb.internal.operation.CommandResultArrayCodec.decode(CommandResultArrayCodec.java:52)
	at deployment.GoStopHandle.ear//com.mongodb.internal.operation.CommandResultDocumentCodec.readValue(CommandResultDocumentCodec.java:60)
	at deployment.GoStopHandle.ear//org.bson.codecs.BsonDocumentCodec.decode(BsonDocumentCodec.java:87)
	at deployment.GoStopHandle.ear//org.bson.codecs.BsonDocumentCodec.decode(BsonDocumentCodec.java:42)
	at deployment.GoStopHandle.ear//org.bson.internal.LazyCodec.decode(LazyCodec.java:48)
	at deployment.GoStopHandle.ear//org.bson.codecs.BsonDocumentCodec.readValue(BsonDocumentCodec.java:104)
	at deployment.GoStopHandle.ear//com.mongodb.internal.operation.CommandResultDocumentCodec.readValue(CommandResultDocumentCodec.java:63)
	at deployment.GoStopHandle.ear//org.bson.codecs.BsonDocumentCodec.decode(BsonDocumentCodec.java:87)
	at deployment.GoStopHandle.ear//org.bson.codecs.BsonDocumentCodec.decode(BsonDocumentCodec.java:42)
	at deployment.GoStopHandle.ear//com.mongodb.internal.connection.ReplyMessage.<init>(ReplyMessage.java:51)
	at deployment.GoStopHandle.ear//com.mongodb.internal.connection.InternalStreamConnection.getCommandResult(InternalStreamConnection.java:535)
	at deployment.GoStopHandle.ear//com.mongodb.internal.connection.InternalStreamConnection.receiveCommandMessageResponse(InternalStreamConnection.java:420)
	at deployment.GoStopHandle.ear//com.mongodb.internal.connection.InternalStreamConnection.sendAndReceive(InternalStreamConnection.java:337)
	at deployment.GoStopHandle.ear//com.mongodb.internal.connection.UsageTrackingInternalConnection.sendAndReceive(UsageTrackingInternalConnection.java:116)
	at deployment.GoStopHandle.ear//com.mongodb.internal.connection.DefaultConnectionPool$PooledConnection.sendAndReceive(DefaultConnectionPool.java:644)
	at deployment.GoStopHandle.ear//com.mongodb.internal.connection.CommandProtocolImpl.execute(CommandProtocolImpl.java:71)
	at deployment.GoStopHandle.ear//com.mongodb.internal.connection.DefaultServer$DefaultServerProtocolExecutor.execute(DefaultServer.java:240)
	at deployment.GoStopHandle.ear//com.mongodb.internal.connection.DefaultServerConnection.executeProtocol(DefaultServerConnection.java:226)
	at deployment.GoStopHandle.ear//com.mongodb.internal.connection.DefaultServerConnection.command(DefaultServerConnection.java:126)
	at deployment.GoStopHandle.ear//com.mongodb.internal.connection.DefaultServerConnection.command(DefaultServerConnection.java:116)
	at deployment.GoStopHandle.ear//com.mongodb.internal.connection.DefaultServer$OperationCountTrackingConnection.command(DefaultServer.java:345)
	at deployment.GoStopHandle.ear//com.mongodb.internal.operation.CommandOperationHelper.createReadCommandAndExecute(CommandOperationHelper.java:232)
	at deployment.GoStopHandle.ear//com.mongodb.internal.operation.FindOperation.lambda$execute$1(FindOperation.java:695)
	at deployment.GoStopHandle.ear//com.mongodb.internal.operation.OperationHelper.lambda$withSourceAndConnection$2(OperationHelper.java:575)
	at deployment.GoStopHandle.ear//com.mongodb.internal.operation.OperationHelper.withSuppliedResource(OperationHelper.java:600)
	at deployment.GoStopHandle.ear//com.mongodb.internal.operation.OperationHelper.lambda$withSourceAndConnection$3(OperationHelper.java:574)
	at deployment.GoStopHandle.ear//com.mongodb.internal.operation.OperationHelper.withSuppliedResource(OperationHelper.java:600)
	at deployment.GoStopHandle.ear//com.mongodb.internal.operation.OperationHelper.withSourceAndConnection(OperationHelper.java:573)
	at deployment.GoStopHandle.ear//com.mongodb.internal.operation.FindOperation.lambda$execute$2(FindOperation.java:690)
	at deployment.GoStopHandle.ear//com.mongodb.internal.async.function.RetryingSyncSupplier.get(RetryingSyncSupplier.java:65)
	at deployment.GoStopHandle.ear//com.mongodb.internal.operation.FindOperation.execute(FindOperation.java:722)
	at deployment.GoStopHandle.ear//com.mongodb.internal.operation.FindOperation.execute(FindOperation.java:86)
	at deployment.GoStopHandle.ear//com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecutor.execute(MongoClientDelegate.java:191)
	at deployment.GoStopHandle.ear//com.mongodb.client.internal.MongoIterableImpl.execute(MongoIterableImpl.java:135)
	at deployment.GoStopHandle.ear//com.mongodb.client.internal.MongoIterableImpl.iterator(MongoIterableImpl.java:92)
	at deployment.GoStopHandle.ear//dev.morphia.query.MorphiaQuery.prepareCursor(MorphiaQuery.java:381)
	at deployment.GoStopHandle.ear//dev.morphia.query.MorphiaQuery.iterator(MorphiaQuery.java:243)
	at deployment.GoStopHandle.ear//dev.morphia.query.Query.iterator(Query.java:274)
	at deployment.GoStopHandle.ear.GoStopHandleJAR.jar//com.gostophandle.ejb.MotorcyclesEJB.init(MotorcyclesEJB.java:100)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
	at java.base/java.lang.reflect.Method.invoke(Method.java:577)
	at [email protected]//org.jboss.as.ee.component.ManagedReferenceLifecycleMethodInterceptor.processInvocation(ManagedReferenceLifecycleMethodInterceptor.java:96)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:509)
	at [email protected]//org.jboss.as.weld.interceptors.Jsr299BindingsInterceptor.delegateInterception(Jsr299BindingsInterceptor.java:79)
	at [email protected]//org.jboss.as.weld.interceptors.Jsr299BindingsInterceptor.doLifecycleInterception(Jsr299BindingsInterceptor.java:126)
	at [email protected]//org.jboss.as.weld.interceptors.Jsr299BindingsInterceptor.processInvocation(Jsr299BindingsInterceptor.java:112)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:509)
	at [email protected]//org.jboss.weld.module.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:81)
	at [email protected]//org.jboss.as.weld.ejb.EjbRequestScopeActivationInterceptor.processInvocation(EjbRequestScopeActivationInterceptor.java:89)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.as.weld.injection.WeldInjectionInterceptor.processInvocation(WeldInjectionInterceptor.java:53)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.as.ee.component.AroundConstructInterceptorFactory$1.processInvocation(AroundConstructInterceptorFactory.java:28)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.as.weld.injection.WeldInterceptorInjectionInterceptor.processInvocation(WeldInterceptorInjectionInterceptor.java:56)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.as.weld.interceptors.Jsr299BindingsCreateInterceptor.processInvocation(Jsr299BindingsCreateInterceptor.java:111)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:254)
	at [email protected]//org.jboss.as.ejb3.tx.CMTTxInterceptor.requiresNew(CMTTxInterceptor.java:416)
	at [email protected]//org.jboss.as.ejb3.tx.LifecycleCMTTxInterceptor.processInvocation(LifecycleCMTTxInterceptor.java:68)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.as.weld.injection.WeldInjectionContextInterceptor.processInvocation(WeldInjectionContextInterceptor.java:43)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.as.ee.concurrent.ConcurrentContextInterceptor.processInvocation(ConcurrentContextInterceptor.java:45)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.invocation.ContextClassLoaderInterceptor.processInvocation(ContextClassLoaderInterceptor.java:60)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.as.ejb3.component.singleton.StartupCountDownInterceptor.processInvocation(StartupCountDownInterceptor.java:25)
	at [email protected]//org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
	at [email protected]//org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:53)
	at [email protected]//org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:168)
	at [email protected]//org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:141)
	at [email protected]//org.jboss.as.ee.component.BasicComponent.createInstance(BasicComponent.java:88)
	at [email protected]//org.jboss.as.ejb3.component.singleton.SingletonComponent.getComponentInstance(SingletonComponent.java:127)
	at [email protected]//org.jboss.as.ejb3.component.singleton.SingletonComponent.start(SingletonComponent.java:141)
	at [email protected]//org.jboss.as.ee.component.ComponentStartService$1.run(ComponentStartService.java:54)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at [email protected]//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
	at [email protected]//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1990)
	at [email protected]//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
	at [email protected]//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
	at java.base/java.lang.Thread.run(Thread.java:833)
	at [email protected]//org.jboss.threads.JBossThread.run(JBossThread.java:513)

evanchooly · 2022-06-30T19:47:58Z

evanchooly
Jun 30, 2022
Maintainer

I'm going to need more context than this. Did you save that Engine first? Have you deleted anything? Consider building a reproducer for me to take a look at.

1 reply

NOTiFYcouk Jul 1, 2022
Author

Fixed the error 'fetch ...' was caused by a duplication '@id" on my Entity 'Engine'.

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dev.morphia.mapping.lazy.proxy.ReferenceException: Referenced 'Engine' entity could not be found during a fetch. #1934

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dev.morphia.mapping.lazy.proxy.ReferenceException: Referenced 'Engine' entity could not be found during a fetch. #1934

NOTiFYcouk Jun 30, 2022

Replies: 1 comment · 1 reply

evanchooly Jun 30, 2022 Maintainer

NOTiFYcouk Jul 1, 2022 Author

NOTiFYcouk
Jun 30, 2022

Replies: 1 comment 1 reply

evanchooly
Jun 30, 2022
Maintainer

NOTiFYcouk Jul 1, 2022
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