Hello every body,i'm working in aproject using eclipse jboss and hibernate,my jboss-service.xml present in G:\jboss-4.0.2RC1\server\default\deploy\jboss-hibernate.deployer\META-INF\ is the following
///////////////////jboss-service.xml////////////////////
<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE server>

<server>
<!-- | HibernateService MBean for MySQL -->
<mbean code="net.sf.hibernate.jmx.HibernateService" name="jboss.jca:service=HibernateSessionFactory">
<depends>jboss.jca:service=RARDeployer</depends>
<!--
<attribute name="MapResources">
mappings/Map.hbm
</attribute>
-->

<attribute name="JndiName">
java:/HibernateSessionFactory
</attribute>
<!--<attribute name="Datasource">java:/DefaultDS</attribute>-->
<attribute name="Dialect">
net.sf.hibernate.dialect.mySQLDialect
</attribute>
<attribute name="TransactionStrategy">
net.sf.hibernate.transaction.JTATransactionFactory
</attribute>
<attribute name="TransactionManagerLookupStrategy">
net.sf.hibernate.transaction.JBossTransactionManagerLookup
</attribute>
<attribute name="ShowSql">true</attribute>
<attribute name="CacheProvider">
net.sf.hibernate.cache.TreeCacheProvider
</attribute>
<attribute name="UserTransactionName">
UserTransaction
</attribute>
</mbean>
</server>


///////////////////////////////////////////////////////////////

the hibernate.cfg.xml file:


/////////////////////////hibernate.cfg.xml/////////////////////
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration
PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd">

<hibernate-configuration>
<session-factory >

<!-- local connection properties -->
<property name="hibernate.connection.url">jdbc:mysql://localhost/Base1</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password"></property>
<!-- property name="hibernate.connection.pool_size"></property -->

<!-- dialect for PostgreSQL -->
<property name="dialect">net.sf.hibernate.dialect.MySQLDialect</property>

<property name="hibernate.show_sql">false</property>
<property name="transaction.manager_lookup_class">net.sf.hibernate.transaction.JBossTransactionManagerLookup</property>
<property name="hibernate.transaction.factory_class">net.sf.hibernate.transaction.JTATransactionFactory</property>
<mapping resource="Map.hbm"/>
</session-factory>
</hibernate-configuration>
/////////////////////////////////////////////////////////////////
when i try to execute a client hows trying to insert in my data base i obtain in the eclipse console this error msg:

Buildfile: D:\eclipse\workspace\SIG\build.xml
prepare:
compile:
ejbjar:
run.MapManager:
[java] log4j:WARN No appenders could be found for logger (net.sf.hibernate.cfg.Environment).
[java] log4j:WARN Please initialize the log4j system properly.
[java] %%%% Error Creating SessionFactory %%%%
[java] net.sf.hibernate.HibernateException: Could not locate TransactionManager
[java] at net.sf.hibernate.transaction.JNDITransactionManagerLookup.getTransactionManager(JNDITransactionManagerLookup.java:26)
[java] at net.sf.hibernate.transaction.JTATransactionFactory.configure(JTATransactionFactory.java:48)
[java] at net.sf.hibernate.transaction.TransactionFactoryFactory.buildTransactionFactory(TransactionFactoryFactory.java:48)
[java] at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:66)
[java] at net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1155)
[java] at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:789)
[java] at sig.mapping.HibernateSessionFactory.currentSession(HibernateSessionFactory.java:42)
[java] at sig.entreprise.MapManager.main(MapManager.java:8)
[java] Caused by: javax.naming.NameNotFoundException: TransactionManager not bound
[java] at org.jnp.server.NamingServer.getBinding(NamingServer.java:491)
[java] at org.jnp.server.NamingServer.getBinding(NamingServer.java:499)
[java] at org.jnp.server.NamingServer.getObject(NamingServer.java:505)
[java] at org.jnp.server.NamingServer.lookup(NamingServer.java:278)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
[java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
[java] at java.lang.reflect.Method.invoke(Unknown Source)
[java] at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source)
[java] at sun.rmi.transport.Transport$1.run(Unknown Source)
[java] at java.security.AccessController.doPrivileged(Native Method)
[java] at sun.rmi.transport.Transport.serviceCall(Unknown Source)
[java] at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source)
[java] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source)
[java] at java.lang.Thread.run(Unknown Source)
[java] at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(Unknown Source)
[java] at sun.rmi.transport.StreamRemoteCall.executeCall(Unknown Source)
[java] at sun.rmi.server.UnicastRef.invoke(Unknown Source)
[java] at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)
[java] at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:610)
[java] at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:572)
[java] at javax.naming.InitialContext.lookup(Unknown Source)
[java] at net.sf.hibernate.transaction.JNDITransactionManagerLookup.getTransactionManager(JNDITransactionManagerLookup.java:23)
[java] ... 7 more
[java] java.lang.NullPointerException
[java] at sig.mapping.HibernateSessionFactory.currentSession(HibernateSessionFactory.java:49)
[java] at sig.entreprise.MapManager.main(MapManager.java:8)
[java] Exception in thread "main"
[java] Java Result: 1
BUILD SUCCESSFUL
Total time: 6 seconds

thonk you very mutch for your help

Check to make sure you have all the required jar files. There are a number of them to include a logging jar.