Hello,

I have strange problem. I put hibernate3.jar and all the supporting libs in the classpath and try to run my program to write and load data to my postgresql 7.4 DB. Then I get a: Exception in thread "main" java.lang.NoClassDefFoundError: antlr/ANTLRException

I have found the line that causes the problem with the sources and the debugger in org.hibernate.hql.ast.ASTQueryTranslatorFactory line 27:

public QueryTranslator createQueryTranslator(String queryString,
Map filters,
SessionFactoryImplementor factory) {
-->return new QueryTranslatorImpl( queryString, filters, factory );<--
}

My JVM does not find the class for the Implementation. That is probably not a Hibernate3 problem because the class file exists in the jar and I have recompiled the sources. The question is what can cause my JVM not to find the class? I have tried to import the build dir or tried the cvs version but it does not change a bit. I have tried to get an instance of the class in my programm and got the same result:NoClassDefFoundError. I am using Jdk1.5_01 with Eclipse3.0 and the pg74.1jdbc3.jar Driver for postgresql and hibernate3.0 rc1. I know that this is not a typical hibernate problem but I do not know where else to ask so please point me in the right direction.

The stacktrace:
Exception in thread "main" java.lang.NoClassDefFoundError: antlr/ANTLRException
at org.hibernate.hql.ast.ASTQueryTranslatorFactory.createQueryTranslator(ASTQueryTranslatorFactory.java:27)
at org.hibernate.impl.SessionFactoryImpl.createQueryTranslators(SessionFactoryImpl.java:344)
at org.hibernate.impl.SessionFactoryImpl.getQuery(SessionFactoryImpl.java:410)
at org.hibernate.impl.SessionImpl.getQueries(SessionImpl.java:814)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:773)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:74)
at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:569)
at persistence.HInterface.getUser(HInterface.java:35)
at persistence.Hibernate_Test.main(Hibernate_Test.java:31)

how about adding antlr.jar to your classpath ?

Hello,

antlr.jar is in the class path.

Greetings
Sven

well the error says you dont have it in the classpath ...so you must be doing something else.

The problem is not within antlr.jar. It is that I cannot get an instance of QueryTranslatorImpl.class in org.hibernate.hql.ast.* .The class file is in the hibernate3.jar but I cannot instanciate it and the Hibernate3 classes cannot either. There must be something wrong with my classpath because I have rebuild hibernate from the sources and the error did not change. I have tried a 1.4.2 JVM and I got the same problem. So the real question is: What is needed to get an instance of QueryTranslatorImpl class? Can you do a new QueryTranslatorImpl(null,null,null) and get an object? If so how does your classpath look like?

Greetings
Sven

if you could build it then use the same classpath and you should be able to run it.

hibernate3 is dependt on antlr.jar and the exception says that it cannot find antlr/AntlrExcpetion.

Hello,

I have also download hibernate3.jar yesterday, it seems that even if the antlr related .class files are in org/hibernate/hql/antlr, it doesn't work !

Anyway, I download http://www.antlr.org/download/antlr-2.7.5.jar and add it into the classpath, now It works fine for me ! :)

Hope it helps you

and why didnt you just use the antlr found in hibernate3/lib ?

because I didn't see it :S and I'm a beginner in Hibernate's amazing world lol :D