title: Hibernate code is not working, how to fix?
body: <p>In an <a href="https://stackoverflow.com/questions/16055067/how-to-fix-config-file-of-hibernate">earlier post</a> , my hibernate config file had some unknown problem. One person gave me another config file to use and that resolved the old config error. After that I removed the code near these comments - <strong>"!-- disable cache  --" "!-- UTF8 to database --" "!-- Entity Mappings --" and now i get a new error.</strong> But it also introduced a new error which is given below. How do I fix it ?</p>
  
  <pre><code>org.hibernate.cfg.annotations.Version &lt;clinit&gt;
  INFO: Hibernate Annotations 3.3.1.GA
  [main] INFO org.hibernate.cfg.Environment - Hibernate 3.3.2.GA
  [main] INFO org.hibernate.cfg.Environment - hibernate.properties not found
  [main] INFO org.hibernate.cfg.Environment - Bytecode provider name : javassist
  [main] INFO org.hibernate.cfg.Environment - using JDK 1.4 java.sql.Timestamp handling
  [main] INFO org.hibernate.cfg.Configuration - configuring from resource: /hibernate.cfg.xml
  [main] INFO org.hibernate.cfg.Configuration - Configuration resource: /hibernate.cfg.xml
  [main] INFO org.hibernate.cfg.Configuration - Configured SessionFactory: null
  [main] INFO org.hibernate.dialect.Dialect - Using dialect: org.hibernate.dialect.MySQLDialect
  Apr 17, 2013 3:10:39 AM org.hibernate.cfg.AnnotationBinder bindClass
  INFO: Binding entity from annotated class: com.examscam.model.User
  Apr 17, 2013 3:10:39 AM org.hibernate.cfg.annotations.EntityBinder bindTable
  INFO: Bind entity com.examscam.model.User on table User
  Apr 17, 2013 3:10:39 AM org.hibernate.cfg.AnnotationConfiguration secondPassCompile
  INFO: Hibernate Validator not found: ignoring
  [main] INFO org.hibernate.tool.hbm2ddl.SchemaExport - Running hbm2ddl schema export
  [main] INFO org.hibernate.tool.hbm2ddl.SchemaExport - exporting generated schema to database
  [main] INFO org.hibernate.connection.ConnectionProviderFactory - Initializing connection provider: org.hibernate.connection.C3P0ConnectionProvider
  [main] INFO org.hibernate.connection.C3P0ConnectionProvider - C3P0 using driver: com.mysql.jdbc.Driver at URL: jdbc:mysql://127.0.0.1:3306/test
  [main] INFO org.hibernate.connection.C3P0ConnectionProvider - Connection properties: {useUnicode=true, user=root, password=****, characterEncoding=UTF-8}
  [main] INFO org.hibernate.connection.C3P0ConnectionProvider - autocommit mode: false
  Exception in thread "main" java.lang.NoClassDefFoundError: com/mchange/v2/c3p0/DataSources
      at org.hibernate.connection.C3P0ConnectionProvider.configure(C3P0ConnectionProvider.java:176)
      at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:137)
      at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:79)
      at org.hibernate.tool.hbm2ddl.ManagedProviderConnectionHelper.prepare(ManagedProviderConnectionHelper.java:51)
      at org.hibernate.tool.hbm2ddl.SchemaExport.execute(SchemaExport.java:252)
      at org.hibernate.tool.hbm2ddl.SchemaExport.create(SchemaExport.java:211)
      at com.examscam.model.User.persist(User.java:48)
      at com.examscam.model.User.main(User.java:55)
  Caused by: java.lang.ClassNotFoundException: com.mchange.v2.c3p0.DataSources
      at java.net.URLClassLoader$1.run(Unknown Source)
      at java.net.URLClassLoader$1.run(Unknown Source)
      at java.security.AccessController.doPrivileged(Native Method)
      at java.net.URLClassLoader.findClass(Unknown Source)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      ... 8 more
  </code></pre>
  
  <p>XML - </p>
  
  <pre><code>&lt;?xml version='1.0' encoding='UTF-8'?&gt;
  &lt;!DOCTYPE hibernate-configuration PUBLIC
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"&gt;
  
  &lt;!-- Generated by MyEclipse Hibernate Tools.                   --&gt;
  &lt;hibernate-configuration&gt;
  
      &lt;session-factory&gt;
          &lt;property name="dialect"&gt;
              org.hibernate.dialect.MySQLDialect
          &lt;/property&gt;
          &lt;property name="connection.url"&gt;
              correct url
          &lt;/property&gt;
          &lt;property name="connection.username"&gt;root&lt;/property&gt;
          &lt;property name="connection.password"&gt;password&lt;/property&gt;
          &lt;property name="connection.driver_class"&gt;
              com.mysql.jdbc.Driver
          &lt;/property&gt;
  
      &lt;/session-factory&gt;
  
  &lt;/hibernate-configuration&gt;
  </code></pre>