NoClassDeffounderror 无法初始化休眠会话工厂

Question

下面查看异常跟踪：

FathomScheduler 包含这个 HibernateSessionFactory 类文件。

它编译没有任何错误，我在分解的存档中运行它。我不确定是否足以在 Eclipse 构建路径中包含休眠 jar，或者我们是否必须将休眠 jar 文件复制到 Jboss 部署目录下的 lib 目录中。我是 Java 新手。

09:54:36,040 ERROR [[/FathomScheduler]] StandardWrapper.Throwable
java.lang.NoClassDefFoundError: Could not initialize class com.datumsoftware.fathom.fathomcommon.hibernate.HibernateSessionFactory
    at com.datumsoftware.fathom.fathomejb.interceptor.FathomInterceptor.intercept(FathomInterceptor.java:31)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:83)
    at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:70)
    at org.jboss.ejb3.EJBContainerInvocationWrapper.invokeNext(EJBContainerInvocationWrapper.java:59)
    at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.invoke(InterceptorSequencer.java:73)
    at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.aroundInvoke(InterceptorSequencer.java:59)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.jboss.aop.advice.PerJoinpointAdvice.invoke(PerJoinpointAdvice.java:174)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.fillMethod(InvocationContextInterceptor.java:72)
    at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_fillMethod_31433872.invoke(InvocationContextInterceptor_z_fillMethod_31433872.java)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.setup(InvocationContextInterceptor.java:88)
    at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_setup_31433872.invoke(InvocationContextInterceptor_z_setup_31433872.java)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.ejb3.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:62)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:56)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:68)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.aspects.tx.TxPolicy.invokeInNoTx(TxPolicy.java:66)
    at org.jboss.ejb3.tx.TxInterceptor$NotSupported.invoke(TxInterceptor.java:114)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.ejb3.security.Ejb3AuthenticationInterceptorv2.invoke(Ejb3AuthenticationInterceptorv2.java:186)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:41)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.ejb3.BlockContainerShutdownInterceptor.invoke(BlockContainerShutdownInterceptor.java:67)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.aspects.currentinvocation.CurrentInvocationInterceptor.invoke(CurrentInvocationInterceptor.java:67)
    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
    at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:176)
    at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:216)
    at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:207)
    at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:164)
    at $Proxy336.fetchAutoDiscoverableHardwares(Unknown Source)
    at com.datumsoftware.fathom.fathomscheduler.servlet.AutoDiscoveryAgent.init(AutoDiscoveryAgent.java:46)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1048)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:950)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4122)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4421)
    at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeployInternal(TomcatDeployment.java:310)
    at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeploy(TomcatDeployment.java:142)
    at org.jboss.web.deployers.AbstractWarDeployment.start(AbstractWarDeployment.java:461)
    at org.jboss.web.deployers.WebModule.startModule(WebModule.java:118)
    at org.jboss.web.deployers.WebModule.start(WebModule.java:97)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
    at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)

09:54:36,078 INFO  [TomcatDeployment] deploy, ctxPath=/FathomWeb
09:54:36,167 INFO  [Http11Protocol] Starting Coyote HTTP/1.1 on http-127.0.0.1-8080
09:54:36,182 INFO  [AjpProtocol] Starting Coyote AJP/1.3 on ajp-127.0.0.1-8009
09:54:36,187 INFO  [ServerImpl] JBoss (Microcontainer) [5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)] Started in 4m:25s:25ms

Since this error seems prevail all over the internet forums and is not easy to interpret. I have tried understanding `NoClassDefFoundError` - exception during compile time but not during run time. I tried putting jars in the class path but I can't avoid this error. Need help. 

我正在使用： - jboss 5.1.0 - 日食 8.6 - postgres 9.2。

提前感谢您的帮助。

Answer 1

请确保您将所有相应的罐子放在正确的位置。 这是我用于休眠的罐子：

• 休眠
• dom4j
• 公地
• antlr

异常是告诉您缺少公共 jar。 此外，所有 jar 必须放在“WEB-INF/lib”中才能找到。