When i try to save an entity i obtain the follow error...why?

Hibernate version:
3.0.2

Full stack trace of any exception that occurs:

17:20:27,953 DEBUG JDBCTransaction:46 - begin
17:20:27,953 DEBUG JDBCTransaction:50 - current autocommit status: false
17:20:27,953 DEBUG DefaultSaveOrUpdateEventListener:159 - saving transient instance
17:20:27,953 DEBUG AbstractSaveEventListener:89 - generated identifier: , using strategy: org.hibernate.id.IdentityGenerator
17:20:27,968 DEBUG AbstractSaveEventListener:132 - saving [sic.business.Ingresso#<null>]
17:20:27,968 DEBUG AbstractSaveEventListener:194 - executing insertions
17:20:27,968 DEBUG Cascades:806 - processing cascade ACTION_SAVE_UPDATE for: sic.business.Ingresso
17:20:28,000 DEBUG Cascades:152 - cascading to saveOrUpdate: sic.business.Socio
17:20:28,000 DEBUG AbstractSaveEventListener:393 - persistent instance of: sic.business.Socio
17:20:28,015 DEBUG DefaultSaveOrUpdateEventListener:103 - ignoring persistent instance
17:20:28,015 DEBUG DefaultSaveOrUpdateEventListener:140 - object already associated with session: [sic.business.Socio#1]
17:20:28,015 DEBUG Cascades:831 - done processing cascade ACTION_SAVE_UPDATE for: sic.business.Ingresso
17:20:28,031 DEBUG BasicEntityPersister:1722 - Inserting entity: sic.business.Ingresso (native id)
17:20:28,031 DEBUG AbstractBatcher:277 - about to open PreparedStatement (open PreparedStatements: 0, globally: 0)
17:20:28,031 DEBUG SQL:311 - /*insert sic.business.Ingresso*/insert into ingressi (ing_data, ing_ospiti, soc_id) values (?, ?, ?)
Hibernate: /*insert sic.business.Ingresso*/insert into ingressi (ing_data, ing_ospiti, soc_id) values (?, ?, ?)
17:20:28,046 DEBUG AbstractBatcher:365 - preparing statement
Exception in thread "com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2" java.lang.AbstractMethodError: com.sybase.jdbc2.jdbc.SybConnection.prepareStatement(Ljava/lang/String;I)Ljava/sql/PreparedStatement;
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.mchange.v2.c3p0.stmt.GooGooStatementCache$2.run(GooGooStatementCache.java:366)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:366)

Name and version of the database you are using:
Sybase Anywhere

just doing a quick search i found this...i could be wrong, but i bet this is it. I hope for you though, im wrong.

sorry, link didn't work.

http://www.sybase.com/detail?id=1033283

halfway down they say...

So i have to use hibernate 2?