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rapthor
 Post subject: ConnectionWrapper is not visible from class loader
PostPosted: Mon Jun 25, 2007 11:40 am 
Regular
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Joined: Wed Nov 01, 2006 2:17 pm
Posts: 78
Hello,

I searched Google for this exception but there seem to be only few hints on that one.

I am using some shared libs in Tomcat. These libs are used by two webapps. The first one provides services for persisting Hibernate entities, the second one is using these services vie the shared libs. The second one is also the one that throws the following exception:

Code:
java.lang.IllegalArgumentException: interface org.hibernate.jdbc.ConnectionWrapper is not visible from class loader
   java.lang.reflect.Proxy.getProxyClass(Proxy.java:353)
   java.lang.reflect.Proxy.newProxyInstance(Proxy.java:581)
   org.hibernate.jdbc.BorrowedConnectionProxy.generateProxy(BorrowedConnectionProxy.java:67)
   org.hibernate.jdbc.ConnectionManager.borrowConnection(ConnectionManager.java:163)
   org.hibernate.jdbc.JDBCContext.borrowConnection(JDBCContext.java:111)
   org.hibernate.impl.SessionImpl.connection(SessionImpl.java:359)
   org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:456)
   org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:349)
   org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:259)
   org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:102)
   org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:161)
   org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:203)
   $Proxy2.create(Unknown Source)
   test.TestController.handleRequest(TestController.java:39)
   org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
   org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:839)
   org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:774)
   org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:460)
   org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:415)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:803)


I really don't know what to do! What is wrong? I get this exception when Spring tries to create a new transaction based on Hibernate's "HibernateTransactionManager".

Thanks in advance.
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rapthor
 Post subject:
PostPosted: Tue Jun 26, 2007 4:55 am 
Regular
Regular

Joined: Wed Nov 01, 2006 2:17 pm
Posts: 78
I tried to put hibernate3.jar into the shared lib folder of Tomcat. I thought this would make the ConnectionWrapper-interface visible to every webapp on the server. But the Exception thrown is still the same!

Is it this hard to have two webapps sharing transactionized service objects? I don't want to put everything into ONE webapp.
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rapthor
 Post subject:
PostPosted: Fri Jun 29, 2007 5:23 am 
Regular
Regular

Joined: Wed Nov 01, 2006 2:17 pm
Posts: 78
Just put the hibernate3.jar into the shared lib of Tomcat again together with the dom4j-libraries. However I am getting the following exception for my hibernate.cfg.xml, which is valid because it runs when I put hibernate3.jar into the WEB-INF/lib dir:

Code:
Caused by: org.hibernate.HibernateException: Could not parse configuration: file:/C:/Programme/Tomcat/webapps/ar/WEB-INF/classes/hibernate.cfg.xml
   at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1494)
   at org.hibernate.cfg.Configuration.configure(Configuration.java:1443)
   at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:634)
   at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:134)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1175)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1145)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:427)
   at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251)
   at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:144)
   at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)
   at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
   at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:276)
   at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:360)
   at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:241)
   at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:184)
   at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:49)
   at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3827)
   at org.apache.catalina.core.StandardContext.start(StandardContext.java:4334)
   at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
   at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
   at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
   at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)
   at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)
   at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
   at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
   at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
   at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
   at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
   at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
   at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
   at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
   at org.apache.catalina.core.StandardService.start(StandardService.java:516)
   at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
   at org.apache.catalina.startup.Catalina.start(Catalina.java:566)
   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:585)
   at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
   at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: org.dom4j.DocumentException: org.dom4j.DocumentFactory Nested exception: org.dom4j.DocumentFactory
   at org.dom4j.io.SAXReader.read(SAXReader.java:484)
   at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1484)
   ... 39 more
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