SDN4 java.lang.ClassCastException：當使用AttributeConverter

首先，我可能會做一些不必要這裏java.lang.Integer中不能被強制轉換爲java.lang.Long的，但我相信這個問題是無關的這一點。我想存儲的Neo4j ZonedDateTime值與該轉換器類：SDN4 java.lang.ClassCastException：當使用AttributeConverter

public class ZonedDateTimeConverter implements AttributeConverter<ZonedDateTime, Long> { 
    @Override 
    public Long toGraphProperty(ZonedDateTime value) { 
     return value != null ? value.toEpochSecond() : null; 
    } 

    @Override 
    public ZonedDateTime toEntityAttribute(Long value) { 
     if (value == null) return null; 
     Instant i = Instant.ofEpochSecond(value); 
     ZoneId zoneId = ZoneId.systemDefault(); 
     return ZonedDateTime.ofInstant(i, zoneId); 
    } 
}

保存價值似乎很好地工作，但檢索時（與findOne例如）我得到以下幾點：

org.neo4j.ogm.metadata.MappingException: Error mapping GraphModel to instance of co.sens.data.models.Transaction 
    at org.neo4j.ogm.mapper.GraphEntityMapper.mapEntities(GraphEntityMapper.java:97) 
    at org.neo4j.ogm.mapper.GraphEntityMapper.map(GraphEntityMapper.java:69) 
    at org.neo4j.ogm.session.response.SessionResponseHandler.loadById(SessionResponseHandler.java:149) 
    at org.neo4j.ogm.session.delegates.LoadOneDelegate.load(LoadOneDelegate.java:45) 
    at org.neo4j.ogm.session.delegates.LoadOneDelegate.load(LoadOneDelegate.java:36) 
    at org.neo4j.ogm.session.Neo4jSession.load(Neo4jSession.java:99) 
    at org.springframework.data.neo4j.repository.GraphRepositoryImpl.findOne(GraphRepositoryImpl.java:60) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:475) 
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:460) 
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:432) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:61) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) 
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281) 
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
    at com.sun.proxy.$Proxy112.findOne(Unknown Source) 
    at co.sens.data.AccountRepositoryTest.testTransactionsForAccount(AccountRepositoryTest.java:76) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) 
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) 
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) 
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) 
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:73) 
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82) 
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:73) 
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) 
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:224) 
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:83) 
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) 
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) 
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) 
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) 
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) 
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) 
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:68) 
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363) 
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:163) 
    at org.junit.runners.Suite.runChild(Suite.java:128) 
    at org.junit.runners.Suite.runChild(Suite.java:27) 
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) 
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) 
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) 
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) 
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) 
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363) 
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137) 
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68) 
Caused by: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Long 
    at co.sens.data.ZonedDateTimeConverter.toEntityAttribute(ZonedDateTimeConverter.java:13) 
    at org.neo4j.ogm.entityaccess.FieldWriter.write(FieldWriter.java:64) 
    at org.neo4j.ogm.mapper.GraphEntityMapper.writeProperty(GraphEntityMapper.java:164) 
    at org.neo4j.ogm.mapper.GraphEntityMapper.setProperties(GraphEntityMapper.java:129) 
    at org.neo4j.ogm.mapper.GraphEntityMapper.mapNodes(GraphEntityMapper.java:110) 
    at org.neo4j.ogm.mapper.GraphEntityMapper.mapEntities(GraphEntityMapper.java:94) 
    ... 62 more

這是一個錯誤還是我在這個應該如何工作上犯了一個錯誤？

來源

2015-11-02 Robin Elvin