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java.lang.NoClassDefFoundError: Could not initialize class org.hibernate.ejb.Ejb3Configuration	at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:124)	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:110)	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83)	at service.PersistenceService.(PersistenceService.java:38)	at service.PersistenceService.(PersistenceService.java:23)	at service.PersistenceService$1.initialValue(PersistenceService.java:29)	at service.PersistenceService$1.initialValue(PersistenceService.java:26)	at java.lang.ThreadLocal.setInitialValue(ThreadLocal.java:141)	at java.lang.ThreadLocal.get(ThreadLocal.java:131)	at service.PersistenceService.getInstance(PersistenceService.java:55)	at service.TestService.get(TestService.java:27)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at com.sun.jersey.impl.model.method.dispatch.EntityParamDispatchProvider$TypeOutInvoker._dispatch(EntityParamDispatchProvider.java:131)	at com.sun.jersey.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:81)	at com.sun.jersey.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:133)	at com.sun.jersey.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:71)	at com.sun.jersey.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:111)	at com.sun.jersey.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:64)	at com.sun.jersey.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:669)	at com.sun.jersey.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:631)	at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:291)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)	at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:411)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:317)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)	at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:288)	at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:271)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:202)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)	at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:206)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:150)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)	at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:272)	at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:637)	at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:568)	at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:813)	at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)	at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)	at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)	at com.sun.enterprise.web.portunif.PortUnificationPipeline$PUTask.doTask(PortUnificationPipeline.java:380)	at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)	at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)