Problem with my first application

LeandroMorais · **Joined:** Tue Apr 11, 2006 5:08 pm **Posts:** 4

Sorry, I tried don't send a fool question to this forum but i can't find a solution for my problem. Please, someone help me.

Hibernate version:
2.1.7

Mapping documents:

Code:

<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping PUBLIC 
   "-//Hibernate/Hibernate Mapping DTD 2.0//EN"
   "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>
   <class 
      name="hello.Message"
      table="Message">
      <id   
         name="id" 
         column="message_id"
         type="long">
         <generator class="native"/>
      </id>
      <property 
         name="text" 
         column="message_text"/>
      <many-to-one 
         name="nextMessage" 
         cascade="all" 
         column="next_message_id"/>
   </class>
</hibernate-mapping>

Code between sessionFactory.openSession() and session.close():

Code:

         Configuration cfg = new Configuration();
         cfg.addResource("hello/Message.hbm.xml");
         cfg.setProperties(System.getProperties());
         SessionFactory sessions = cfg.buildSessionFactory();
         
         Session session = sessions.openSession(); //getSessionFactory().openSession();
         Transaction tx = session.beginTransaction();
         Message message = new Message("Hello world");
         session.save(message);
         tx.commit();
         session.close();

Full stack trace of any exception that occurs:

Code:

2006-04-11 17:08:18,546 INFO  hibernate.cfg.Environment  -> Hibernate 2.1.8
2006-04-11 17:08:18,556 INFO  hibernate.cfg.Environment  -> loaded properties from resource hibernate.properties: {hibernate.c3p0.timeout=300, hibernate.connection.driver_class=org.gjt.mm.mysql.Driver, hibernate.cglib.use_reflection_optimizer=true, hibernate.c3p0.max_statements=50, hibernate.c3p0.max_size=30, hibernate.dialect=net.sf.hibernate.dialect.MySQLDialect, hibernate.c3p0.idle_test_period=3000, hibernate.c3p0.min_size=5, hibernate.connection.username=root, hibernate.connection.url=jdbc:mysql://192.168.10.100:3306/temp, hibernate.connection.password=root}
2006-04-11 17:08:18,558 INFO  hibernate.cfg.Environment  -> using CGLIB reflection optimizer
2006-04-11 17:08:18,562 INFO  hibernate.cfg.Environment  -> using JDK 1.4 java.sql.Timestamp handling
2006-04-11 17:08:18,565 INFO  hibernate.cfg.Configuration  -> Mapping resource: hello/Message.hbm.xml
2006-04-11 17:08:18,827 DEBUG hibernate.util.DTDEntityResolver  -> trying to locate http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd in classpath under net/sf/hibernate/
2006-04-11 17:08:18,831 DEBUG hibernate.util.DTDEntityResolver  -> http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtdnot found in classpath
2006-04-11 17:08:20,766 INFO  hibernate.cfg.Binder  -> Mapping class: hello.Message -> Message
2006-04-11 17:08:20,811 DEBUG hibernate.cfg.Binder  -> Mapped property: id -> message_id, type: long
2006-04-11 17:08:20,818 DEBUG hibernate.cfg.Binder  -> Mapped property: text -> message_text, type: string
2006-04-11 17:08:20,822 DEBUG hibernate.cfg.Binder  -> Mapped property: nextMessage -> next_message_id, type: hello.Message
2006-04-11 17:08:20,823 INFO  hibernate.cfg.Configuration  -> processing one-to-many association mappings
2006-04-11 17:08:20,824 INFO  hibernate.cfg.Configuration  -> processing one-to-one association property references
2006-04-11 17:08:20,824 INFO  hibernate.cfg.Configuration  -> processing foreign key constraints
2006-04-11 17:08:20,825 DEBUG hibernate.cfg.Configuration  -> resolving reference to class: hello.Message
2006-04-11 17:08:20,837 INFO  hibernate.dialect.Dialect  -> Using dialect: net.sf.hibernate.dialect.MySQLDialect
2006-04-11 17:08:20,859 DEBUG hibernate.exception.SQLExceptionConverterFactory  -> Using dialect defined converter
2006-04-11 17:08:20,861 INFO  hibernate.cfg.SettingsFactory  -> Maximim outer join fetch depth: 2
2006-04-11 17:08:20,862 INFO  hibernate.cfg.SettingsFactory  -> Use outer join fetching: true
2006-04-11 17:08:20,871 WARN  hibernate.connection.UserSuppliedConnectionProvider  -> No connection properties specified - the user must supply JDBC connections
2006-04-11 17:08:20,886 INFO  hibernate.transaction.TransactionManagerLookupFactory  -> No TransactionManagerLookup configured (in JTA environment, use of process level read-write cache is not recommended)
2006-04-11 17:08:20,893 INFO  hibernate.cfg.SettingsFactory  -> Use scrollable result sets: false
2006-04-11 17:08:20,894 INFO  hibernate.cfg.SettingsFactory  -> Use JDBC3 getGeneratedKeys(): false
2006-04-11 17:08:20,895 INFO  hibernate.cfg.SettingsFactory  -> Optimize cache for minimal puts: false
2006-04-11 17:08:20,895 INFO  hibernate.cfg.SettingsFactory  -> Query language substitutions: {}
2006-04-11 17:08:20,896 INFO  hibernate.cfg.SettingsFactory  -> cache provider: net.sf.hibernate.cache.EhCacheProvider
2006-04-11 17:08:20,905 DEBUG hibernate.cfg.SettingsFactory  -> Wrap result sets enabled? : false
2006-04-11 17:08:20,905 INFO  hibernate.cfg.Configuration  -> instantiating and configuring caches
2006-04-11 17:08:20,907 DEBUG sf.ehcache.CacheManager  -> Creating new CacheManager with default config
2006-04-11 17:08:20,911 DEBUG sf.ehcache.CacheManager  -> Configuring ehcache from classpath.
2006-04-11 17:08:20,923 WARN  ehcache.config.Configurator  -> No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: jar:file:/home/leandro/libs/hibernate-2.1/lib/ehcache-0.9.jar!/ehcache-failsafe.xml
2006-04-11 17:08:20,931 DEBUG ehcache.config.Configuration$DiskStore  -> Disk Store Path: /tmp
Exception in thread "main" java.lang.ExceptionInInitializerError
   at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:805)
   at Main.main(Main.java:18)
Caused by: net.sf.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
   at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:236)
   at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:145)
   at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:117)
   at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108)
   at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104)
   at net.sf.hibernate.impl.SessionFactoryImpl.<clinit>(SessionFactoryImpl.java:237)
   ... 2 more
Caused by: java.lang.reflect.InvocationTargetException
   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:324)
   at net.sf.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:373)
   at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:218)
   ... 7 more
Caused by: java.lang.IllegalAccessError: class net.sf.hibernate.impl.SessionFactoryImpl$QueryCacheKeyFactory$$KeyFactoryByCGLIB$$601120ed cannot access its superinterface net.sf.hibernate.impl.SessionFactoryImpl$QueryCacheKeyFactory
   at java.lang.ClassLoader.defineClass0(Native Method)
   at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
   ... 13 more 

Name and version of the database you are using:
MySQL 4.1

This is the Hello World Aplication from "Hibernate em Ação" first version.

Thank you.

Leandro

kgignatyev · **Posted:** Wed Apr 12, 2006 5:53 pm

Looks like classloading or versions mismatch issue

http://forum.hibernate.org/viewtopic.ph ... e830ede82c

LeandroMorais · **Joined:** Tue Apr 11, 2006 5:08 pm **Posts:** 4

I can't understand. How I fix this?

Tks.

kgignatyev · **Posted:** Thu Apr 13, 2006 1:46 pm

Just check how your envirinment constructs the runtime classpath and make sure that proper versions of jars are in the classpath.

LeandroMorais · **Joined:** Tue Apr 11, 2006 5:08 pm **Posts:** 4

Konstantin, thank you.

I had a problem in the classpath. The application run fine in NetBeans but not in Eclipse. I change de way a build the classpath and then it runs. I spend so much time with this problem.

I was buildding the classpath folling the steps:

- right click on the current Java Project name in the Eclipse Package Explorer and click on Properties
- click on Java Build Class in the Properties window
- click on the Libraries tab
- click on the Add External JARs button
- enter the folder and the JAR file name
- click on the Open button
- click on the OK button at the bottom of the Properties window.

Then a change to a aplication paste /lib and put this in the classpath.

Don´t ask me why put now it runs.

Tks.