無法施展org.hibernate.search.hcore.impl.HibernateSearchIntegrator到org.hibernate.integrator.spi.Integrator

Question

我收到以下錯誤：

Cannot cast org.hibernate.search.hcore.impl.HibernateSearchIntegrator to 
org.hibernate.integrator.spi.Integrator 

堆棧跟蹤：

[WARN] Exception while dispatching incoming RPC call 
com.google.gwt.user.server.rpc.UnexpectedException: Service method 'XXX threw an unexpected exception: java.util.ServiceConfigurationError: org.hibernate.integrator.spi.Integrator: Provider org.hibernate.search.hcore.impl.HibernateSearchIntegrator could not be instantiated: java.lang.ClassCastException: Cannot cast org.hibernate.search.hcore.impl.HibernateSearchIntegrator to org.hibernate.integrator.spi.Integrator 
    at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:385) 
    at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:588) 
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208) 
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248) 
    at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) 
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) 
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) 
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) 
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) 
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at org.mortbay.jetty.Server.handle(Server.java:324) 
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) 
    at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) 
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) 
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) 
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) 
    at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) 
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) 
Caused by: java.util.ServiceConfigurationError: org.hibernate.integrator.spi.Integrator: Provider org.hibernate.search.hcore.impl.HibernateSearchIntegrator could not be instantiated: java.lang.ClassCastException: Cannot cast org.hibernate.search.hcore.impl.HibernateSearchIntegrator to org.hibernate.integrator.spi.Integrator 
    at java.util.ServiceLoader.fail(ServiceLoader.java:224) 
    at java.util.ServiceLoader.access$100(ServiceLoader.java:181) 
    at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:370) 
    at java.util.ServiceLoader$1.next(ServiceLoader.java:438) 
    at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.loadJavaServices(ClassLoaderServiceImpl.java:251) 
    at org.hibernate.integrator.internal.IntegratorServiceImpl.(IntegratorServiceImpl.java:53) 
    at org.hibernate.service.internal.BootstrapServiceRegistryImpl.(BootstrapServiceRegistryImpl.java:80) 
    at org.hibernate.service.internal.BootstrapServiceRegistryImpl.(BootstrapServiceRegistryImpl.java:57) 
    at org.hibernate.service.ServiceRegistryBuilder.(ServiceRegistryBuilder.java:76) 
    at com.orangeraft.hms.server.module.login.service.LoginServiceImpl.login(LoginServiceImpl.java:46) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:616) 
    at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569) 
    ... 22 more 
Caused by: java.lang.ClassCastException: Cannot cast org.hibernate.search.hcore.impl.HibernateSearchIntegrator to org.hibernate.integrator.spi.Integrator 
    at java.lang.Class.cast(Class.java:3007) 
    at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:362) 
    ... 34 more 

這裏我的代碼：

Configuration configuration = new Configuration(); 
configuration.configure(); 
ServiceRegistry serviceRegistry = new ServiceRegistryBuilder() 
     .applySettings(configuration.getProperties()) 
     .buildServiceRegistry(); 
SessionFactory sf = configuration.buildSessionFactory(serviceRegistry); 
Session hibernateSession = sf.getCurrentSession(); 
FullTextSession fullTextSession = Search.getFullTextSession(hibernateSession); 
    fullTextSession.createIndexer().startAndWait(); 

我只是想創建索引顯示在GWT應用程序的Hibernate Search的教程here。任何想法如何解決這一問題？

Answer 1

我想你在你的WEB-INF/lib和啓動類路徑中都有hibernate。這可能會混淆類加載器，因爲實現和接口可能不會被同一個類加載器加載，從而導致出現意外的ClassCastException。