将pf4j与Spring Data一起使用时出现异常。
我的项目结构是一个 Web 应用程序org.home.server.communication (war)，它部署到 Tomcat 中并使用Spring MVC。它加载了一个pf4j插件 - org.home.server.core (jar)。它工作得很好，直到我尝试在org.home.server.core （插件项目）中使用spring-data-mongodb并尝试使用MongoRepository / CrudRepository / Repository。
在插件构造函数中，我这样做：
public PluginStarter(final PluginWrapper wrapper) {
super(wrapper);
appContext.setId("Core-Module-Context");
appContext.setClassLoader(this.getClass().getClassLoader());
appContext.getBeanFactory().setBeanClassLoader(this.getClass().getClassLoader());
appContext.register(CoreRootConfig.class);
appContext.refresh();
mApplicationContext = appContext;
}
但是当我在插件应用程序中定义任何存储库并尝试从我的主应用程序启动它时，它会崩溃。这是存储库示例：
public interface ConnectorRepository extends MongoRepository<Connector, String> {}
当我不使用pf4j和 jsut 将 jar 作为独立应用程序运行时，一切正常。所以，我认为问题不在于Spring Framework。也许有人已经尝试在pf4j中使用Spring-Data和Repositories并且遇到了这个问题。
也许有人可以指出我下一步该往哪里看？
D|DefaultListableBeanFactory |Invoking afterPropertiesSet() on bean with name 'connectorRepository'
D|PluginClassLoader |Received request to load class 'org.springframework.data.repository.core.support.AbstractRepositoryMetadata'
D|PluginClassLoader |Found class 'org.springframework.data.repository.core.support.AbstractRepositoryMetadata' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.repository.core.support.DefaultRepositoryMetadata'
D|PluginClassLoader |Found class 'org.springframework.data.repository.core.support.DefaultRepositoryMetadata' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.repository.core.support.AnnotationRepositoryMetadata'
D|PluginClassLoader |Found class 'org.springframework.data.repository.core.support.AnnotationRepositoryMetadata' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.repository.query.QueryLookupStrategy'
D|PluginClassLoader |Found class 'org.springframework.data.repository.query.QueryLookupStrategy' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.mongodb.repository.query.MongoEntityInformation'
D|PluginClassLoader |Found class 'org.springframework.data.mongodb.repository.query.MongoEntityInformation' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.repository.util.NullableWrapper'
D|PluginClassLoader |Found class 'org.springframework.data.repository.util.NullableWrapper' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryCollectingQueryCreationListener'
D|PluginClassLoader |Found class 'org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryCollectingQueryCreationListener' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.repository.core.CrudMethods'
D|PluginClassLoader |Found class 'org.springframework.data.repository.core.CrudMethods' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.core.GenericTypeResolver$TypeVariableMapVariableResolver'
D|PluginClassLoader |Found class 'org.springframework.core.GenericTypeResolver$TypeVariableMapVariableResolver' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.util.ParameterizedTypeInformation'
D|PluginClassLoader |Received request to load class 'org.springframework.data.util.ParentTypeAwareTypeInformation'
D|PluginClassLoader |Found class 'org.springframework.data.util.ParentTypeAwareTypeInformation' in plugin classpath
D|PluginClassLoader |Found class 'org.springframework.data.util.ParameterizedTypeInformation' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.util.TypeVariableTypeInformation'
D|PluginClassLoader |Found class 'org.springframework.data.util.TypeVariableTypeInformation' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.repository.core.support.RepositoryFactorySupport$RepositoryInformationCacheKey'
D|PluginClassLoader |Found class 'org.springframework.data.repository.core.support.RepositoryFactorySupport$RepositoryInformationCacheKey' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.repository.core.support.DefaultRepositoryInformation'
D|PluginClassLoader |Found class 'org.springframework.data.repository.core.support.DefaultRepositoryInformation' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.querydsl.QueryDslUtils'
D|PluginClassLoader |Found class 'org.springframework.data.querydsl.QueryDslUtils' in plugin classpath
D|PluginClassLoader |Received request to load class 'com.mysema.query.types.Predicate'
D|PluginClassLoader |Look in dependencies for class 'com.mysema.query.types.Predicate'
D|PluginClassLoader |Couldn't find class '{}' in plugin classpath. Delegating to parent
D|PluginClassLoader |Received request to load class 'com.mysema.query.types$Predicate'
D|PluginClassLoader |Look in dependencies for class 'com.mysema.query.types$Predicate'
D|PluginClassLoader |Couldn't find class '{}' in plugin classpath. Delegating to parent
D|PluginClassLoader |Received request to load class 'org.springframework.data.mongodb.repository.support.SimpleMongoRepository'
D|PluginClassLoader |Found class 'org.springframework.data.mongodb.repository.support.SimpleMongoRepository' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.domain.Sort'
D|PluginClassLoader |Found class 'org.springframework.data.domain.Sort' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.domain.Pageable'
D|PluginClassLoader |Found class 'org.springframework.data.domain.Pageable' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.domain.Page'
D|PluginClassLoader |Received request to load class 'org.springframework.data.domain.Slice'
D|PluginClassLoader |Found class 'org.springframework.data.domain.Slice' in plugin classpath
D|PluginClassLoader |Found class 'org.springframework.data.domain.Page' in plugin classpath
D|PluginClassLoader |Received request to load class 'java.util.AbstractSet'
D|PluginClassLoader |Look in dependencies for class 'java.util.AbstractSet'
D|PluginClassLoader |Couldn't find class '{}' in plugin classpath. Delegating to parent
D|PluginClassLoader |Received request to load class 'org.springframework.data.mongodb.core.mapping.BasicMongoPersistentEntity$MongoPersistentPropertyComparator'
D|PluginClassLoader |Found class 'org.springframework.data.mongodb.core.mapping.BasicMongoPersistentEntity$MongoPersistentPropertyComparator' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.mapping.model.PreferredConstructorDiscoverer'
D|PluginClassLoader |Found class 'org.springframework.data.mapping.model.PreferredConstructorDiscoverer' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.util.ReflectionUtils'
D|PluginClassLoader |Found class 'org.springframework.data.util.ReflectionUtils' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.data.util.ReflectionUtils$DescribedFieldFilter'
D|PluginClassLoader |Found class 'org.springframework.data.util.ReflectionUtils$DescribedFieldFilter' in plugin classpath
D|PluginClassLoader |Received request to load class 'org.springframework.core.NestedExceptionUtils'
D|PluginClassLoader |Found class 'org.springframework.core.NestedExceptionUtils' in plugin classpath
D|DefaultListableBeanFactory |Retrieved dependent beans for bean '(inner bean)#a303d13': [connectorRepository]
D|DefaultListableBeanFactory |Retrieved dependent beans for bean '(inner bean)#72adbe38': [(inner bean)#a303d13]
D|DefaultListableBeanFactory |Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@144f3ec6: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,coreRootConfig,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor,org.springframework.context.annotation.ConfigurationClassPostProcessor.enhancedConfigurationProcessor,org.home.server.core.module.config.CoreMongoDBConfig,mongo,mongoTemplate,org.springframework.data.mongodb.repository.config.MongoRepositoryConfigurationExtension#0,org.springframework.data.repository.core.support.RepositoryInterfaceAwareBeanPostProcessor#0,mongoMappingContext,connectorRepository]; root of factory hierarchy
D|DisposableBeanAdapter |Invoking destroy() on bean with name 'mongo'
D|PluginClassLoader |Received request to load class 'com.mongodb.ConcurrentLinkedDeque$CLDIterator'
D|PluginClassLoader |Found class 'com.mongodb.ConcurrentLinkedDeque$CLDIterator' in plugin classpath
D|DisposableBeanAdapter |Invoking destroy() on bean with name 'org.home.server.core.module.config.CoreMongoDBConfig'
D|DisposableBeanAdapter |Invoking destroy() on bean with name 'coreRootConfig'
E|DefaultExtensionFactory |null
java.lang.reflect.InvocationTargetException: null
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_20]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_20]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_20]
at java.lang.reflect.Constructor.newInstance(Constructor.java:408) ~[na:1.8.0_20]
at ro.fortsoft.pf4j.DefaultPluginFactory.create(DefaultPluginFactory.java:61) ~[DefaultPluginFactory.class:0.9.0]
at ro.fortsoft.pf4j.PluginWrapper.getPlugin(PluginWrapper.java:63) [PluginWrapper.class:0.9.0]
at ro.fortsoft.pf4j.DefaultPluginManager.startPlugins(DefaultPluginManager.java:213) [DefaultPluginManager.class:0.9.0]
at org.home.server.communication.Starter.contextInitialized(Starter.java:86) [Starter.class:na]
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4758) [catalina.jar:8.0.9]
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5184) [catalina.jar:8.0.9]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [catalina.jar:8.0.9]
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:724) [catalina.jar:8.0.9]
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:700) [catalina.jar:8.0.9]
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:714) [catalina.jar:8.0.9]
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1588) [catalina.jar:8.0.9]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_20]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_20]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_20]
at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_20]
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) [tomcat-coyote.jar:8.0.9]
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_20]
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_20]
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:463) [catalina.jar:8.0.9]
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:413) [catalina.jar:8.0.9]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_20]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_20]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_20]
at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_20]
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) [tomcat-coyote.jar:8.0.9]
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_20]
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_20]
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1466) [na:1.8.0_20]
at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_20]
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1307) [na:1.8.0_20]
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1399) [na:1.8.0_20]
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:828) [na:1.8.0_20]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_20]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_20]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_20]
at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_20]
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323) [na:1.8.0_20]
at sun.rmi.transport.Transport$1.run(Transport.java:178) [na:1.8.0_20]
at sun.rmi.transport.Transport$1.run(Transport.java:175) [na:1.8.0_20]
at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_20]
at sun.rmi.transport.Transport.serviceCall(Transport.java:174) [na:1.8.0_20]
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:557) [na:1.8.0_20]
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:812) [na:1.8.0_20]
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:671) [na:1.8.0_20]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_20]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_20]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_20]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectorRepository': Invocation of init method failed; nested exception is java.lang.ExceptionInInitializerError
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553) ~ [AbstractAutowireCapableBeanFactory.class:4.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539) ~[AbstractAutowireCapableBeanFactory.class:4.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) ~[AbstractAutowireCapableBeanFactory.class:4.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302) ~[AbstractBeanFactory$1.class:4.0.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[DefaultSingletonBeanRegistry.class:4.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298) ~[AbstractBeanFactory.class:4.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) ~[AbstractBeanFactory.class:4.0.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:684) ~[DefaultListableBeanFactory.class:4.0.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760) ~[AbstractApplicationContext.class:4.0.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) ~[AbstractApplicationContext.class:4.0.6.RELEASE]
at org.home.server.core.module.CoreModule.<init>(CoreModule.java:90) ~[na:na]
at org.home.server.core.PluginStarter.<init>(PluginStarter.java:56) ~[na:na]
... 51 common frames omitted
Caused by: java.lang.ExceptionInInitializerError: null
at org.springframework.data.mapping.model.BasicPersistentEntity.<init>(BasicPersistentEntity.java:85) ~[na:na]
at org.springframework.data.mongodb.core.mapping.BasicMongoPersistentEntity.<init>(BasicMongoPersistentEntity.java:67) ~[na:na]
at org.springframework.data.mongodb.core.mapping.MongoMappingContext.createPersistentEntity(MongoMappingContext.java:89) ~[na:na]
at org.springframework.data.mongodb.core.mapping.MongoMappingContext.createPersistentEntity(MongoMappingContext.java:37) ~[na:na]
at org.springframework.data.mapping.context.AbstractMappingContext.addPersistentEntity(AbstractMappingContext.java:280) ~[na:na]
at org.springframework.data.mapping.context.AbstractMappingContext.getPersistentEntity(AbstractMappingContext.java:181) ~[na:na]
at org.springframework.data.mapping.context.AbstractMappingContext.getPersistentEntity(AbstractMappingContext.java:141) ~[na:na]
at org.springframework.data.mapping.context.AbstractMappingContext.getPersistentEntity(AbstractMappingContext.java:67) ~[na:na]
at org.springframework.data.mongodb.repository.support.MongoRepositoryFactory.getEntityInformation(MongoRepositoryFactory.java:141) ~[na:na]
at org.springframework.data.mongodb.repository.support.MongoRepositoryFactory.getTargetRepository(MongoRepositoryFactory.java:83) ~[na:na]
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:158) ~[na:na]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:224) ~[na:na]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:210) ~[na:na]
at org.springframework.data.mongodb.repository.support.MongoRepositoryFactoryBean.afterPropertiesSet(MongoRepositoryFactoryBean.java:108) ~[na:na]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612) ~[AbstractAutowireCapableBeanFactory.class:4.0.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549) ~[AbstractAutowireCapableBeanFactory.class:4.0.6.RELEASE]
... 62 common frames omitted
Caused by: java.lang.ClassCastException: org.springframework.core.DefaultParameterNameDiscoverer cannot be cast to org.springframework.core.ParameterNameDiscoverer
at org.springframework.data.mapping.model.PreferredConstructorDiscoverer.<clinit>(PreferredConstructorDiscoverer.java:41) ~[na:na]
... 78 common frames omitted
I|Starter |Context destruction has began.
I|AnnotationConfigWebApplicationContext |Closing Root WebApplicationContext: startup date [Fri Sep 05 09:15:09 CEST 2014]; root of context hierarchy
D|DefaultListableBeanFactory |Returning cached instance of singleton bean 'lifecycleProcessor'
D|DefaultListableBeanFactory |Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@1fbb2adf: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,rootConfig,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor,org.springframework.context.annotation.ConfigurationClassPostProcessor.enhancedConfigurationProcessor]; root of factory hierarchy