you can see the enhancer log which will be generated when you compile your code.
2010/7/2 Didier Durand <[email protected]> > Hello, > > The enhancer sometimes doesn't start on classes. > > The best way I have found to make it run each time is to name > explicitly all my jdo-annotated classes in Project Settings -> Google - > > App Engine -> ORM under Eclipse. > No more problem! > Hope it works for you too > didier > > On Jul 1, 1:47 pm, Marthen <[email protected]> wrote: > > Hi guys, > > > > I have an simple application running on top of Spring using JPA for > > Google AppEngine (GAE). > > > > There's no compilation error, but when i load my application using > > Google AppEngine Development Server, i got runtime error saying that > > my Entity class is not enhanced!! > > Which kinda confusing me actually, because i deployed to another > > container (tomcat) and this Entity classes is running smoothly (of > > course i need to modify the persistence.xml accordingly) > > > > Here is my persistence.xml : > > > > <?xml version="1.0" encoding="UTF-8"?> > > <persistence xmlns="http://java.sun.com/xml/ns/persistence"; > > version="1.0"> > > <persistence-unit name="myDB"> > > > <provider>org.datanucleus.store.appengine.jpa.DatastorePersistenceProvider</ > > provider> > > <properties> > > <property name="datanucleus.NontransactionalRead" value="true"/> > > <property name="datanucleus.NontransactionalWrite" value="true"/> > > <property name="datanucleus.ConnectionURL" value="appengine"/> > > </properties> > > </persistence-unit> > > </persistence> > > > > My Entity class : > > > > @Entity > > @Table(name = "audit_trail") > > public class AuditTrail implements java.io.Serializable { > > private static final long serialVersionUID = 1L; > > private Integer id; > > > > @Id > > @GeneratedValue(strategy = GenerationType.IDENTITY) > > @Column(name = "id", nullable = false) > > public Integer getId() { > > return id; > > > > } > > > > public void setId(Integer id) { > > this.id = id; > > > > } > > > > private String message; > > > > @Column(name = "message") > > public String getMessage() { > > return message; > > > > } > > > > public void setMessage(String msg) { > > this.message = msg; > > > > } > > } > > > > And this is the error code: > > > > 10-07-01 11:18:22 ERROR [] [main] MetaData - Found Meta-Data for class > > com.somecompany.demo.model.AuditTrail but this class is not enhanced!! > > Please enhance the class before running DataNucleus. > > org.datanucleus.exceptions.NucleusUserException: Found Meta-Data for > > class com.somecompany.demo.model.AuditTrail but this class is not > > enhanced!! Please enhance the class before running DataNucleus. > > at > > > org.datanucleus.metadata.MetaDataManager.initialiseClassMetaData(MetaDataManager.java: > > 2225) > > at > > > org.datanucleus.metadata.MetaDataManager.initialiseFileMetaData(MetaDataManager.java: > > 2176) > > at > > > org.datanucleus.metadata.MetaDataManager.initialiseFileMetaDataForUse(MetaDataManager.java: > > 881) > > at > > > org.datanucleus.metadata.MetaDataManager.loadPersistenceUnit(MetaDataManager.java: > > 794) > > at > > > org.datanucleus.jpa.EntityManagerFactoryImpl.initialisePMF(EntityManagerFactoryImpl.java: > > 488) > > at > > > org.datanucleus.jpa.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java: > > 355) > > at > > > org.datanucleus.store.appengine.jpa.DatastoreEntityManagerFactory.<init>(DatastoreEntityManagerFactory.java: > > 63) > > at > > > org.datanucleus.store.appengine.jpa.DatastorePersistenceProvider.createEntityManagerFactory(Datastor > > ePersistenceProvider.java:35) > > at javax.persistence.Persistence.createFactory(Persistence.java:172) > > at > > > javax.persistence.Persistence.createEntityManagerFactory(Persistence.java: > > 112) > > at > > > org.springframework.orm.jpa.LocalEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalEnti > > tyManagerFactoryBean.java:91) > > at > > > org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManage > > rFactoryBean.java:291) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(Abstr > > actAutowireCapableBeanFactory.java:1369) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(Abstract > > AutowireCapableBeanFactory.java:1335) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAu > > towireCapableBeanFactory.java:473) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory > > $1.run(AbstractAutowireCapableBeanFactory.java:409) > > at java.security.AccessController.doPrivileged(Native Method) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAuto > > wireCapableBeanFactory.java:380) > > at org.springframework.beans.factory.support.AbstractBeanFactory > > $1.getObject(AbstractBeanFactory.java:264) > > at > > > org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingleton > > BeanRegistry.java:222) > > at > > > org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java: > > 261 > > ) > > at > > > org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java: > > 185) > > at > > > org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java: > > 164) > > at > > > org.springframework.orm.jpa.EntityManagerFactoryUtils.findEntityManagerFactory(EntityManagerFactoryU > > tils.java:99) > > at > > > org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findNamedEntityManagerFac > > tory(PersistenceAnnotationBeanPostProcessor.java:488) > > at > > > org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findEntityManagerFactory( > > PersistenceAnnotationBeanPostProcessor.java:470) > > at > > > org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor > > > $PersistenceElement.resolveEntityManager(PersistenceAnnotationBeanPostProcessor.java: > > 599) > > at > > > org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor > > > $PersistenceElement.getResourceToInject(PersistenceAnnotationBeanPostProcessor.java: > > 570) > > at org.springframework.beans.factory.annotation.InjectionMetadata > > $InjectedElement.inject(InjectionMetadata.java:192) > > at > > > org.springframework.beans.factory.annotation.InjectionMetadata.injectMethods(InjectionMetadata.java: > > 117) > > at > > > org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues > > (PersistenceAnnotationBeanPostProcessor.java:321) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAu > > towireCapableBeanFactory.java:998) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAu > > towireCapableBeanFactory.java:472) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory > > $1.run(AbstractAutowireCapableBeanFactory.java:409) > > at java.security.AccessController.doPrivileged(Native Method) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAuto > > wireCapableBeanFactory.java:380) > > at org.springframework.beans.factory.support.AbstractBeanFactory > > $1.getObject(AbstractBeanFactory.java:264) > > at > > > org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingleton > > BeanRegistry.java:222) > > at > > > org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java: > > 261 > > ) > > at > > > org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java: > > 185) > > at > > > org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java: > > 164) > > at > > > org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitio > > nValueResolver.java:269) > > at > > > org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDe > > finitionValueResolver.java:104) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(Abs > > tractAutowireCapableBeanFactory.java:1245) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAu > > towireCapableBeanFactory.java:1010) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAu > > towireCapableBeanFactory.java:472) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory > > $1.run(AbstractAutowireCapableBeanFactory.java:409) > > at java.security.AccessController.doPrivileged(Native Method) > > at > > > org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAuto > > wireCapableBeanFactory.java:380) > > at org.springframework.beans.factory.support.AbstractBeanFactory > > $1.getObject(AbstractBeanFactory.java:264) > > at > > > org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingleton > > BeanRegistry.java:222) > > at > > > org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java: > > 261 > > ) > > at > > > org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java: > > 185) > > at > > > org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java: > > 164) > > at > > > org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(Defaul > > tListableBeanFactory.java:429) > > at > > > org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(Abstr > > actApplicationContext.java:728) > > at > > > org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.ja > > va:380) > > at > > > org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java: > > 255) > > at > > > org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java: > > 199) > > at > > > org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java: > > 45) > > at > > > org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java: > > 548) > > at org.mortbay.jetty.servlet.Context.startContext(Context.java:136) > > at > > org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java: > > 1250) > > at > > org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java: > > 517) > > at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java: > > 467) > > at > > org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: > > 50) > > at > > org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java: > > 130) > > at > > org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: > > 50) > > at... > > > > read more ยป > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-appengine-java%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. 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