I have Java v1.6, Tomcat v5.5.20 installed on winxp. JasperSever v1.2 started without problems (war-file). On debian linux (Java 1.6, Tomcat v5.5) I get following exception (/WEB-INF/lib/cglib-2.1_3.jar exists): 15:33:26,581 ERROR BasicLazyInitializer,http-8080-Processor25:130 - CGLIB Enhancement failed: com.jaspersoft.jasperserver.api.metadata.common.service.impl.hibernate.persistent.RepoQuery java.lang.NoClassDefFoundError: Could not initialize class net.sf.cglib.core.ReflectUtils at net.sf.cglib.core.KeyFactory$Generator.generateClass(KeyFactory.java:167) at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25) at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:216) at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:145) at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:117) at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108) at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104) at net.sf.cglib.proxy.Enhancer.<clinit>(Enhancer.java:69) at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:116) at org.hibernate.proxy.CGLIBProxyFactory.postInstantiate(CGLIBProxyFactory.java:41) at org.hibernate.tuple.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:161) at org.hibernate.tuple.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:131) at org.hibernate.tuple.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55) at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64) at org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:257) at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:412) at org.hibernate.persister.entity.JoinedSubclassEntityPersister.<init>(JoinedSubclassEntityPersister.java:90) at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:58) at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:215) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1176) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:885) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:797) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:860) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:829) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:409) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:238) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:148) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:186) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:764) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:575) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:405) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:238) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:148) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:253) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:331) at org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableWebApplicationContext.java:155) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:240) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:178) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:49) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3729) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4187) at org.apache.catalina.manager.ManagerServlet.start(ManagerServlet.java:1175) at org.apache.catalina.manager.HTMLManagerServlet.start(HTMLManagerServlet.java:527) at org.apache.catalina.manager.HTMLManagerServlet.doGet(HTMLManagerServlet.java:104) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at sun.reflect.GeneratedMethodAccessor58.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:243) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAsPrivileged(Subject.java:517) at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:275) at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:161) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:245) at org.apache.catalina.core.ApplicationFilterChain.access$0(ApplicationFilterChain.java:177) at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:156) at java.security.AccessController.doPrivileged(Native Method) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:152) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:619) ....... 15:33:26,685 ERROR BasicLazyInitializer,http-8080-Processor25:130 - CGLIB Enhancement failed: com.jaspersoft.jasperserver.api.metadata.common.service.impl.hibernate.persistent.RepoListOfValues java.lang.NoClassDefFoundError: Could not initialize class net.sf.cglib.proxy.Enhancer at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:116) at org.hibernate.proxy.CGLIBProxyFactory.postInstantiate(CGLIBProxyFactory.java:41) at org.hibernate.tuple.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:161) at org.hibernate.tuple.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:131) at org.hibernate.tuple.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55) at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64) at org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:257) at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:412) at org.hibernate.persister.entity.JoinedSubclassEntityPersister.<init>(JoinedSubclassEntityPersister.java:90) at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:58) at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:215) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1176) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:885) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:797) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:860) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:829) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:409) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:238) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:148) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:186) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:764) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:575) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:405) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:238) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:148) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:253) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:331) at org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableWebApplicationContext.java:155) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:240) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:178) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:49) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3729) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4187) at org.apache.catalina.manager.ManagerServlet.start(ManagerServlet.java:1175) at org.apache.catalina.manager.HTMLManagerServlet.start(HTMLManagerServlet.java:527) at org.apache.catalina.manager.HTMLManagerServlet.doGet(HTMLManagerServlet.java:104) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at sun.reflect.GeneratedMethodAccessor58.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:243) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAsPrivileged(Subject.java:517) at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:275) at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:161) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:245) at org.apache.catalina.core.ApplicationFilterChain.access$0(ApplicationFilterChain.java:177) at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:156) at java.security.AccessController.doPrivileged(Native Method) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:152) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:619) .... Thanx for any help...