在尝试使用hibernate工具生成pojos或映射时,我得到了一个noclassdeffounderror

Question

我正在尝试从我的数据库生成pojos但我在eclipse indigo 3.7.2上安装了hibernate工具3.4插件和hibernate 3.6.10库(它们似乎都是)在构建路径中出现以下错误

精简版 :

org.hibernate.console.HibernateConsoleRuntimeException: Received a NoClassDefFoundError, probably the console configuration classpath is incomplete or contains conflicting versions of the same class
Received a NoClassDefFoundError, probably the console configuration classpath is incomplete or contains conflicting versions of the same class
  java.lang.NoClassDefFoundError: Could not initialize class org.hibernate.cfg.reveng.OverrideRepository
  Could not initialize class org.hibernate.cfg.reveng.OverrideRepository
    java.lang.NoClassDefFoundError: Could not initialize class org.hibernate.cfg.reveng.OverrideRepository
    Could not initialize class org.hibernate.cfg.reveng.OverrideRepository

来自项目构建路径的MY罐子(按顺序排列):

• hibernate-distribution-3.6.10.Final\hibernate.jar文件
• hibernate-distribution-3.6.10.Final\LIB \需要\ ANTLR-2.7.6.jar
• hibernate-distribution-3.6.10.Final\LIB \需要\公地集合-3.1.jar
• hibernate-distribution-3.6.10.Final\LIB \所需\的dom4j-1.6.1.jar
• hibernate-distribution-3.6.10.Final\LIB \需要\ Javassist进行-3.12.0.GA.jar
• hibernate-distribution-3.6.10.Final\LIB \需要\ JTA-1.1.jar
• hibernate-distribution-3.6.10.Final\LIB \需要\ SLF4J-API-1.6.1.jar
• PostgreSQL相关9.0-802.jdbc3.jar

我注意到hibernate工具插件在其插件文件夹BTW中有一些较旧的jar(slf4j例如版本为1.5.8)同时我会尝试buddyloading

正常堆叠

ENTRY org.hibernate.eclipse.console 4 666 2012-06-25 04:23:55.946
!MESSAGE org.hibernate.console.HibernateConsoleRuntimeException: Received a NoClassDefFoundError, probably the console configuration classpath is incomplete or contains conflicting versions of the same class
!STACK 0
org.hibernate.console.HibernateConsoleRuntimeException: Received a NoClassDefFoundError, probably the console configuration classpath is incomplete or contains conflicting versions of the same class
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6.launchExporters(ConsoleExtension3_6.java:149)
    at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate.launch(CodeGenerationLaunchDelegate.java:270)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:854)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:703)
    at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:928)
    at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1132)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.hibernate.cfg.reveng.OverrideRepository
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6$3.execute(ConsoleExtension3_6.java:249)
    at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:63)
    at org.jboss.tools.hibernate3_6.HibernateExtension3_6.execute(HibernateExtension3_6.java:201)
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6.buildConfiguration(ConsoleExtension3_6.java:239)
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6.runExporters(ConsoleExtension3_6.java:169)
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6.launchExporters(ConsoleExtension3_6.java:126)
    ... 6 more
!SUBENTRY 1 org.hibernate.eclipse.console 4 666 2012-06-25 04:23:55.946
!MESSAGE org.hibernate.console.HibernateConsoleRuntimeException: Received a NoClassDefFoundError, probably the console configuration classpath is incomplete or contains conflicting versions of the same class
!STACK 0
org.hibernate.console.HibernateConsoleRuntimeException: Received a NoClassDefFoundError, probably the console configuration classpath is incomplete or contains conflicting versions of the same class
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6.launchExporters(ConsoleExtension3_6.java:149)
    at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate.launch(CodeGenerationLaunchDelegate.java:270)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:854)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:703)
    at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:928)
    at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1132)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.hibernate.cfg.reveng.OverrideRepository
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6$3.execute(ConsoleExtension3_6.java:249)
    at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:63)
    at org.jboss.tools.hibernate3_6.HibernateExtension3_6.execute(HibernateExtension3_6.java:201)
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6.buildConfiguration(ConsoleExtension3_6.java:239)
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6.runExporters(ConsoleExtension3_6.java:169)
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6.launchExporters(ConsoleExtension3_6.java:126)
    ... 6 more
!SUBENTRY 1 org.hibernate.eclipse.console 4 666 2012-06-25 04:23:55.946
!MESSAGE java.lang.NoClassDefFoundError: Could not initialize class org.hibernate.cfg.reveng.OverrideRepository
!STACK 0
java.lang.NoClassDefFoundError: Could not initialize class org.hibernate.cfg.reveng.OverrideRepository
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6$3.execute(ConsoleExtension3_6.java:249)
    at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:63)
    at org.jboss.tools.hibernate3_6.HibernateExtension3_6.execute(HibernateExtension3_6.java:201)
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6.buildConfiguration(ConsoleExtension3_6.java:239)
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6.runExporters(ConsoleExtension3_6.java:169)
    at org.jboss.tools.hibernate3_6.console.ConsoleExtension3_6.launchExporters(ConsoleExtension3_6.java:126)
    at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate.launch(CodeGenerationLaunchDelegate.java:270)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:854)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:703)
    at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:928)
    at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1132)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)  

我第一次尝试使用代码生成时得到了类似的结果:

org.hibernate.console.HibernateConsoleRuntimeException: Received a NoClassDefFoundError, probably the console configuration classpath is incomplete or contains conflicting versions of the same class Received a NoClassDefFoundError, probably the console configuration classpath is incomplete or contains conflicting versions of the same class   java.lang.NoClassDefFoundError: org/objectweb/asm/Type   org/objectweb/asm/Type    
java.lang.NoClassDefFoundError: org/objectweb/asm/Type org/objectweb/asm/Type          
java.lang.ClassNotFoundException: org.objectweb.asm.Type     org.objectweb.asm.Type    

在那之后我只得到了[...]cfg.reveng.OverrideRepository error.

Answer 1

在经历了几个小时的NoclassDefFoundError后,我终于找到了解决方案.

主要焦点:hibernate版本的库应该与所选的Hibernate版本的控制台配置相匹配(第3点).

清单:

1. 确保你已经下载了最新版本的Hibernate插件(适合你的eclipse的版本).要获取它,请转到Help-> Eclipse Marketplace->键入:hibernate(eclipse版本名称,例如luna).选择最新的JBoss工具,并选择Hibernate和JBoss Maven Hibernate配置器以实现最低功能.

2. 从http://hibernate.org/orm/downloads/下载最新的jar文件.将这些文件存储在构建路径中的文件夹中.

3. 在创建Hibernate控制台配置时,请确保从下拉列表中选择最新的Hibernate版本.例如,在我的情况下,因为我在构建路径中有Hibernate 4.x jar文件,所以选择版本4.3.解决了问题.

尝试从控制台配置的下拉列表中更改Hibernate版本.它可以解决问题.