Hibernate迁移：BeanlibException

时间：2014-02-13 06:27:49

标签： java hibernate migration hibernate-4.x

在进行Hibernate迁移时，遇到bean lib jar问题。如你所见，我附上了与bean复制器相关的所有罐子。

在遇到问题的运行时：

      11:56:33,354 ERROR [BeanPopulator] 
propertyName=handler
readerMethod=public javassist.util.proxy.MethodHandler com.v4common.shared.beans.usermanagement.User_$$_jvstb35_4c.getHandler()
setterMethod=public void com.v4common.shared.beans.usermanagement.User_$$_jvstb35_4c.setHandler(javassist.util.proxy.MethodHandler)
fromBean=com.v4common.shared.beans.usermanagement.User@1
toBean=com.v4common.shared.beans.usermanagement.User_$$_jvstb35_4c@0

net.sf.beanlib.BeanlibException: java.lang.NoSuchMethodException: org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.<init>()
    at net.sf.beanlib.provider.replicator.BeanReplicator.replicateBean(BeanReplicator.java:169)
    at net.sf.beanlib.hibernate3.Hibernate3JavaBeanReplicator.replicateBean(Hibernate3JavaBeanReplicator.java:71)
    at net.sf.beanlib.provider.replicator.ReplicatorTemplate.replicateByBeanReplicatable(ReplicatorTemplate.java:125)
    at net.sf.beanlib.provider.replicator.ReplicatorTemplate.replicate(ReplicatorTemplate.java:120)
    at net.sf.beanlib.provider.BeanTransformer.transform(BeanTransformer.java:224)
    at net.sf.beanlib.provider.BeanPopulator.doit(BeanPopulator.java:201)
    at net.sf.beanlib.provider.BeanPopulator.processSetterMethod(BeanPopulator.java:172)
    at net.sf.beanlib.provider.BeanPopulator.populate(BeanPopulator.java:270)
    at net.sf.beanlib.provider.replicator.ReplicatorTemplate.populateBean(ReplicatorTemplate.java:174)
    at net.sf.beanlib.provider.replicator.BeanReplicator.replicateBean(BeanReplicator.java:173)
    at net.sf.beanlib.hibernate3.Hibernate3JavaBeanReplicator.replicateBean(Hibernate3JavaBeanReplicator.java:71)
    at net.sf.beanlib.provider.replicator.ReplicatorTemplate.replicateByBeanReplicatable(ReplicatorTemplate.java:125)
    at net.sf.beanlib.provider.replicator.ReplicatorTemplate.replicate(ReplicatorTemplate.java:120)
    at net.sf.beanlib.provider.BeanTransformer.transform(BeanTransformer.java:224)
    at net.sf.beanlib.provider.BeanPopulator.doit(BeanPopulator.java:201)
    at net.sf.beanlib.provider.BeanPopulator.processSetterMethod(BeanPopulator.java:172)
    at net.sf.beanlib.provider.BeanPopulator.populate(BeanPopulator.java:270)
    at net.sf.beanlib.provider.replicator.ReplicatorTemplate.populateBean(ReplicatorTemplate.java:174)
    at net.sf.beanlib.provider.replicator.BeanReplicator.replicateBean(BeanReplicator.java:173)
    at net.sf.beanlib.hibernate3.Hibernate3JavaBeanReplicator.replicateBean(Hibernate3JavaBeanReplicator.java:71)
    at net.sf.beanlib.provider.replicator.ReplicatorTemplate.replicateByBeanReplicatable(ReplicatorTemplate.java:125)
    at net.sf.beanlib.provider.replicator.ReplicatorTemplate.replicate(ReplicatorTemplate.java:120)
    at net.sf.beanlib.provider.BeanTransformer.transform(BeanTransformer.java:224)
    at net.sf.beanlib.provider.BeanPopulator.doit(BeanPopulator.java:201)
    at net.sf.beanlib.provider.BeanPopulator.processSetterMethod(BeanPopulator.java:172)
    at net.sf.beanlib.provider.BeanPopulator.populate(BeanPopulator.java:270)
    at net.sf.beanlib.provider.replicator.ReplicatorTemplate.populateBean(ReplicatorTemplate.java:174)
    at net.sf.beanlib.provider.replicator.BeanReplicator.replicateBean(BeanReplicator.java:173)
    at net.sf.beanlib.hibernate3.Hibernate3JavaBeanReplicator.replicateBean(Hibernate3JavaBeanReplicator.java:71)
    at net.sf.beanlib.provider.replicator.ReplicatorTemplate.replicateByBeanReplicatable(ReplicatorTemplate.java:125)
    at net.sf.beanlib.provider.replicator.ReplicatorTemplate.replicate(ReplicatorTemplate.java:120)
    at net.sf.beanlib.provider.BeanTransformer.transform(BeanTransformer.java:224)
    at net.sf.beanlib.hibernate.HibernateBeanReplicator.copy(HibernateBeanReplicator.java:133)
    at net.sf.beanlib.hibernate.HibernateBeanReplicator.copy(HibernateBeanReplicator.java:111)
    at com.v4common.shared.util.other.ConversionUtil.copyProperties(ConversionUtil.java:364)
    at com.nextenders.dao.UserDetailsDao.fetchAllPostForUser(UserDetailsDao.java:3368)
    at com.nextenders.dao.UserDetailsDao.processsRequest(UserDetailsDao.java:119)
    at com.nextenders.common.DaoReceiver.processRequest(DaoReceiver.java:86)
    at com.nextenders.common.DaoHandler.handleRequest(DaoHandler.java:12)
    at com.nextenders.facadeimplementation.facade.UserFacade.fetchAllPostForUser(UserFacade.java:1526)
    at com.nextenders.facadeimplementation.facade.UserFacade.getDataOnLogIn(UserFacade.java:2671)
    at com.nextenders.facadeimplementation.facade.UserFacade.doLogin(UserFacade.java:2356)
    at com.nextenders.server.LoginServlet.doPost(LoginServlet.java:304)
    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$CachedChain.doFilter(ServletHandler.java:1097)
    at com.nextenders.server.ExceptionHandler.doFilter(ExceptionHandler.java:28)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1088)
    at com.nextenders.server.BaseFilter.doFilter(BaseFilter.java:79)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1088)
    at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:66)
    at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:118)
    at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:113)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1088)
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
    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)

你可以在这里看到我的课程。

enter image description here

有关此的任何线索？

感谢您的帮助。

1 个答案:

答案 0 :(得分：2)

我有一个相同的错误，我通过gettign一些源jar并应用一些更改来解决它。 erorr的根本原因是，通过不识别Javassist类，Beanlib尝试克隆包含处理程序方法的Javassist类。通常，它必须克隆祖先类。这就是UnEnhance类所做的 - 找到非Javassist的祖先。为了做到这一点，它需要能够告诉Javassist

创建了哪些类

我的起点与你的起点并不完全相同，因为我们使用的是Beanlib的3.3.0beta20b版本，而你使用的是5.0.1beta。但是，我得到的堆栈跟踪与您显示的堆栈跟踪相同，因此解决方案也可能适用于您的情况。和你一样，我们使用的是Javassist版本3.18.1-GA

在BeanlibHibernate库中，类UnEnancer负责识别源自Javassist的类。

  • 旧版Javassist生成的类名包含字符串“_ $$ javassist ”。

  • 较新版本3.18.1-GA生成包含字符串“_ $$ _ jvst”的类。我可以在上面的示例中看到相同的字符串。

  • 一个非常旧的版本生成以“”org.javassist.tmp“开头的类名”

方法isJavassistEnhanced使用OR条件来查找“旧”和“非常旧”的标准。这需要修改，因此当条件查找“新”字符串时，OR条件允许第三种情况。

在我更改它之前，这是UnEnhance.java中的代码：

private static final String JAVASSIST_STARTWITH = "org.javassist.tmp."; 
private static final String JAVASSIST_INDEXOF = "_$$_javassist_";

/** 
 * Returns true if the given class is found to be a javassist enhanced class; 
 * false otherwise. 
 */ 
private static boolean isJavassistEnhanced(Class c) {
    String className = c.getName();
    // pattern found in javassist 3.4 and 3.6's ProxyFactory 
    return className.startsWith(JAVASSIST_STARTWITH)
        || className.indexOf(JAVASSIST_INDEXOF) != -1
    ;
    }

这是在我改变它之后：

private static final String JAVASSIST_STARTWITH = "org.javassist.tmp."; 
private static final String JAVASSIST_INDEXOF = "_$$_javassist_";
private static final String HB4_JAVASSIST  = "_$$_jvst" ;

/** 
 * Returns true if the given class is found to be a javassist enhanced class; 
 * false otherwise. 
 */ 
private static boolean isJavassistEnhanced(Class c) {
   String className = c.getName();
   // pattern found in javassist 3.4 and 3.6's ProxyFactory
   boolean isEnhanced =
      className.startsWith(JAVASSIST_STARTWITH)
      || className.indexOf(JAVASSIST_INDEXOF) != -1
      || className.in`enter code here`dexOf(HB4_JAVASSIST) != -1  // 3.18.1-GA
      ;
   return isEnhanced ;
}

我找到了以下来源：

http://ebr.springsource.com/repository/app/bundle/version/detail?name=com.springsource.net.sf.beanlib.hibernate&version=3.3.0.beta21

http://ebr.springsource.com/repository/app/bundle/version/detail?name=com.springsource.net.sf.beanlib&version=3.3.0.beta21

有了这个改变，我可以把它当作Hibernate 4.2.6和GWT 2.5.0那样。我无法使DTO和newIdentifier功能正常工作，但显然Hibernate4GWT不需要这些功能

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