I get the following error when attempting to execute hbm2java from the hibernate tool. I dug into the jar file and found that this class doesn't exist however the class org.hibernate.mapping.MetaAttribute does.

I got the hibernate-tools.jar from
hibernate-tools-3.0.0.alpha4a.zip/org.hibernate.eclipse_3.0.0.alpha4

I suspected there is an out of date velocity file somewhere, but my grep for MetaAttributable did not reveal it.


Here is the relevant excerpt from my build log.

INFO: Mapping file: C:\home\projects\tgs\src\java\com\tgs\entity\User.hbm.xml
Jun 13, 2005 10:03:28 AM org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues
INFO: Mapping class: com.tgs.entity.User -> users
Jun 13, 2005 10:03:29 AM org.hibernate.cfg.Configuration secondPassCompile
INFO: processing extends queue
Jun 13, 2005 10:03:29 AM org.hibernate.cfg.Configuration secondPassCompile
INFO: processing collection mappings
Jun 13, 2005 10:03:29 AM org.hibernate.cfg.Configuration secondPassCompile
INFO: processing association property references
Jun 13, 2005 10:03:29 AM org.hibernate.cfg.Configuration secondPassCompile
INFO: processing foreign key constraints
java.lang.NoClassDefFoundError: org/hibernate/mapping/MetaAttributable
at org.apache.tools.ant.Project.executeTarget(Project.java:1224)
at org.apache.tools.ant.Project.executeTargets(Project.java:1063)
at org.apache.tools.ant.Main.runBuild(Main.java:632)
at org.apache.tools.ant.Main.startAnt(Main.java:183)
at org.apache.tools.ant.Main.start(Main.java:147)
at org.apache.tools.ant.Main.main(Main.java:230)
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 com.intellij.rt.ant.execution.AntMain2.main(AntMain2.java:13)
Caused by: java.lang.NoClassDefFoundError: org/hibernate/mapping/MetaAttributable
at org.hibernate.tool.hbm2x.TemplateHelper.<init>(TemplateHelper.java:34)
at org.hibernate.tool.hbm2x.AbstractExporter.setupTemplates(AbstractExporter.java:93)
at org.hibernate.tool.hbm2x.POJOExporter.start(POJOExporter.java:101)
at org.hibernate.tool.ant.GeneratorTask.execute(GeneratorTask.java:33)
at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:115)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:269)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.Target.execute(Target.java:301)
at org.apache.tools.ant.Target.performTasks(Target.java:328)
at org.apache.tools.ant.Project.executeTarget(Project.java:1215)
... 10 more
--- Nested Exception ---

I don't have the source version, but I decompiled the code. And found that
Cfg2JavaTool.getMetaAsX() methods expecte MetaAttributable objects as parameters, But it's not being found on my classpath containing hibernate3.jar and hibernate-tools.jar

any Ideas

so you is not using the hibernate3.jar which is bundled with hibernatetools.

in this case its 3.0.5

note you dont need to use the exact same hiernate jar with the tools and your own project if you only e.g. use 3.0.3.....but for using the tools you need to use at least the version incldued with the tools.