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Facing issue during hot deploy of kar file

My kar file contains the following bundles:
a)common-bundle(contains hibernate as the JPA provider)
b)client-bundle(accesses the entityManagerFactory present inside common-bundle and execute business logic)
I've a strange problem while executing hot deploy of kar file on karaf container.
If I try to do a normal deploy(i.e. by stopping the karaf container,putting the kar file into deploy folder and re-starting karaf container),both the bundles get up and running without any problem.
However,when I try to hot deploy the kar file on karaf container,it throws me the following exception:
Dec 06 13:50:50 INFO 141 HHH000204: Processing PersistenceUnitInfo [
name: MyModelClass
...]
Dec 06 13:50:51 INFO 141 HHH000130: Instantiating explicit connection provider: org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider
Dec 06 13:50:51 ERROR 187 The DataSource osgi:service/javax.sql.DataSource/(osgi.jndi.service.name=jdbc/ds) required by bundle common-bundle/0.0.1.SNAPSHOT could not be found.
javax.naming.NameNotFoundException: osgi:service/javax.sql.DataSource/"(osgi.jndi.service.name=jdbc/ds)"
at org.apache.aries.jndi.url.ServiceRegistryContext.lookup(ServiceRegistryContext.java:113)[66:org.apache.aries.jndi.url:1.1.0]
at org.apache.aries.jndi.url.ServiceRegistryContext.lookup(ServiceRegistryContext.java:138)[66:org.apache.aries.jndi.url:1.1.0]
at org.apache.aries.jndi.DelegateContext.lookup(DelegateContext.java:161)[64:org.apache.aries.jndi.core:1.0.2]
at javax.naming.InitialContext.lookup(InitialContext.java:417)[:1.8.0_141]
at org.apache.aries.jpa.container.unit.impl.JndiDataSource.getDs(JndiDataSource.java:66)[187:org.apache.aries.jpa.container:1.0.4]
at org.apache.aries.jpa.container.unit.impl.DelayedLookupDataSource.getConnection(DelayedLookupDataSource.java:36)[187:org.apache.aries.jpa.container:1.0.4]
at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:70)[213:org.hibernate.entitymanager:4.2.21.Final]
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcServicesImpl.java:242)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:117)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:85)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:184)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:156)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1827)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1785)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.ejb.EntityManagerFactoryImpl.(EntityManagerFactoryImpl.java:96)[213:org.hibernate.entitymanager:4.2.21.Final]
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:915)[213:org.hibernate.entitymanager:4.2.21.Final]
at org.hibernate.osgi.OsgiPersistenceProvider.createContainerEntityManagerFactory(OsgiPersistenceProvider.java:99)[214:org.hibernate.osgi:4.2.21.Final]
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager.createEntityManagerFactories(EntityManagerFactoryManager.java:432)[187:org.apache.aries.jpa.container:1.0.4]
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager.registerEntityManagerFactories(EntityManagerFactoryManager.java:292)[187:org.apache.aries.jpa.container:1.0.4]
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager.access$000(EntityManagerFactoryManager.java:74)[187:org.apache.aries.jpa.container:1.0.4]
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager$1.call(EntityManagerFactoryManager.java:203)[187:org.apache.aries.jpa.container:1.0.4]
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager$1.call(EntityManagerFactoryManager.java:199)[187:org.apache.aries.jpa.container:1.0.4]
at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_141]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)[:1.8.0_141]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)[:1.8.0_141]
at java.lang.Thread.run(Thread.java:748)[:1.8.0_141]
Dec 06 13:50:51 WARN 187 Error creating EntityManagerFactory
java.lang.RuntimeException: The DataSource osgi:service/javax.sql.DataSource/(osgi.jndi.service.name=jdbc/ds) required by bundle common-bundle/0.0.1.SNAPSHOT could not be found.
at org.apache.aries.jpa.container.unit.impl.JndiDataSource.getDs(JndiDataSource.java:87)[187:org.apache.aries.jpa.container:1.0.4]
at org.apache.aries.jpa.container.unit.impl.DelayedLookupDataSource.getConnection(DelayedLookupDataSource.java:36)[187:org.apache.aries.jpa.container:1.0.4]
at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:70)[213:org.hibernate.entitymanager:4.2.21.Final]
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcServicesImpl.java:242)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:117)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:85)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:184)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:156)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1827)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1785)[212:org.hibernate.core:4.2.21.Final]
at org.hibernate.ejb.EntityManagerFactoryImpl.(EntityManagerFactoryImpl.java:96)[213:org.hibernate.entitymanager:4.2.21.Final]
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:915)[213:org.hibernate.entitymanager:4.2.21.Final]
at org.hibernate.osgi.OsgiPersistenceProvider.createContainerEntityManagerFactory(OsgiPersistenceProvider.java:99)[214:org.hibernate.osgi:4.2.21.Final]
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager.createEntityManagerFactories(EntityManagerFactoryManager.java:432)[187:org.apache.aries.jpa.container:1.0.4]
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager.registerEntityManagerFactories(EntityManagerFactoryManager.java:292)[187:org.apache.aries.jpa.container:1.0.4]
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager.access$000(EntityManagerFactoryManager.java:74)[187:org.apache.aries.jpa.container:1.0.4]
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager$1.call(EntityManagerFactoryManager.java:203)[187:org.apache.aries.jpa.container:1.0.4]
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager$1.call(EntityManagerFactoryManager.java:199)[187:org.apache.aries.jpa.container:1.0.4]
at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_141]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)[:1.8.0_141]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)[:1.8.0_141]
at java.lang.Thread.run(Thread.java:748)[:1.8.0_141]
Caused by: javax.naming.NameNotFoundException: osgi:service/javax.sql.DataSource/"(osgi.jndi.service.name=jdbc/ds)"
at org.apache.aries.jndi.url.ServiceRegistryContext.lookup(ServiceRegistryContext.java:113)[66:org.apache.aries.jndi.url:1.1.0]
at org.apache.aries.jndi.url.ServiceRegistryContext.lookup(ServiceRegistryContext.java:138)[66:org.apache.aries.jndi.url:1.1.0]
at org.apache.aries.jndi.DelegateContext.lookup(DelegateContext.java:161)[64:org.apache.aries.jndi.core:1.0.2]
at javax.naming.InitialContext.lookup(InitialContext.java:417)[:1.8.0_141]
at org.apache.aries.jpa.container.unit.impl.JndiDataSource.getDs(JndiDataSource.java:66)[187:org.apache.aries.jpa.container:1.0.4]
... 21 more
Dec 06 13:50:51 INFO 141 HHH000204: Processing PersistenceUnitInfo [
name: MyModelClass
...]
Dec 06 13:50:52 INFO 141 HHH000130: Instantiating explicit connection provider: org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider
Dec 06 13:50:55 INFO 141 HHH000400: Using dialect: org.hibernate.dialect.Oracle10gDialect
Dec 06 13:50:55 INFO 141 HHH000268: Transaction strategy: org.hibernate.engine.transaction.internal.jdbc.JdbcTransactionFactory
Dec 06 13:50:55 INFO 141 HHH000397: Using ASTQueryTranslatorFactory
Dec 06 13:50:56 WARN 141 HHH000008: JTASessionContext being used with JDBCTransactionFactory; auto-flush will not operate correctly with getCurrentSession()
Following are the most important contents of the bundles:
common-bundle:
Persistence.xml:
<persistence version="2.0"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/persistence">
<persistence-unit name="my-persistent-unit" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<non-jta-data-source>osgi:service/javax.sql.DataSource/(osgi.jndi.service.name=jdbc/ds)</non-jta-data-source>
<class>MyModelClass</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
</persistence-unit>
blueprint.xml:
<cm:property-placeholder persistent-id='my-persistent-id'
update-strategy='reload'
placeholder-prefix="${"
placeholder-suffix="}">
<cm:default-properties>
<cm:property name="driver" value="undefined"/>
<cm:property name="url" value="undefined"/>
<cm:property name="username" value="undefined"/>
<cm:property name="password" value="undefined"/>
</cm:default-properties>
</cm:property-placeholder>
<jasypt:property-placeholder encryptor-ref="encryptor"/>
<reference id="encryptor" interface="org.jasypt.encryption.StringEncryptor" availability="mandatory"/>
<bean id='myDs'
class="CustomConnection">
<property name="connectionFactoryClassName" value="oracle.jdbc.pool.OracleDataSource"/>
<property name="URL" value="${url}"/>
<property name="user" value="${username}"/>
<property name="password" value="${password}"/>
<property name="validateConnectionOnBorrow" value="true"/>
</bean>
<service ref='myDs' interface='javax.sql.DataSource'>
<service-properties>
<entry key='osgi.jndi.service.name' value='jdbc/ds'/>
</service-properties>
</service>
client-bundle:
blueprint.xml
<bean id="myController"
class="MyController">
<argument ref="entityManagerFactory"/>
</bean>
<reference id="entityManagerFactory"
interface="javax.persistence.EntityManagerFactory"
filter="(osgi.unit.name=my-persistent-unit)"
availability="mandatory"/>
Please help.

Apparently every bundle is using a datasource but no one is creating it.
javax.naming.NameNotFoundException: osgi:service/javax.sql.DataSource/"(osgi.jndi.service.name=jdbc/ds)"
You need to create this datasource, for example by dropping a simple XML file into deploy dir:
<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0">
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="org.postgresql.Driver" />
<property name="url" value="jdbc:postgresql://localhost:5432/yourdb"/>
<property name="username" value="XXX"/>
<property name="password" value="XXX"/>
</bean>
<service interface="javax.sql.DataSource" ref="dataSource">
<service-properties>
<entry key="osgi.jndi.service.name" value="jdbc/ds"/>
</service-properties>
</service>
</blueprint>
You will need jdbc and jndi features installed.

No more connection with c3p0

I have connection issues since i decided to use c3p0 pooling.
persistence.xml
<property name="hibernate.connection.url" value="jdbc:mysql://***.***.***.***:****/*****"/>
<property name="hibernate.connection.username" value="****"/>
<property name="hibernate.connection.password" value="****"/>
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
<property name="hibernate.show_sql" value="true" />
<!-- <property name="hibernate.connection.provider_class" value="org.hibernate.c3p0.internal.C3P0ConnectionProvider" /> -->
<!-- <property name="hibernate.c3p0.min_size" value="1"/> -->
<!-- <property name="hibernate.c3p0.max_size" value="50"/> -->
<!-- <property name="hibernate.c3p0.timeout" value="10000"/> -->
<!-- <property name="hibernate.c3p0.max_statements" value="100"/> -->
<!-- <property name="hibernate.c3p0.idle_test_period" value="300"/> -->
With this config everything works fine. When i uncomment the c3p0 properties i cant even connect to my application.
try {
user = UserDAO.connect(login,Tools.encode(password));
}
catch (SQLException e) {
e.printStackTrace();
logger.error(utils.Constants.GENERAL_ERROR);
message=utils.Constants.LOGIN_KO;
}
finally{
//some code
}
I tried to run this code in debug. I have a break point on each block. The program directly go from the try to the finally.
Here are the logs:
2015-08-26 15:27:50 INFO LogHelper:46 - HHH000204: Processing PersistenceUnitInfo [
name: ****
...]
2015-08-26 15:27:53 INFO Version:54 - HHH000412: Hibernate Core {4.3.6.Final}
2015-08-26 15:27:53 INFO Environment:239 - HHH000206: hibernate.properties not found
2015-08-26 15:27:53 INFO Environment:346 - HHH000021: Bytecode provider name : javassist
2015-08-26 15:27:56 INFO Version:66 - HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
2015-08-26 15:27:56 INFO ConnectionProviderInitiator:190 - HHH000130: Instantiating explicit connection provider: org.hibernate.c3p0.internal.C3P0ConnectionProvider
2015-08-26 15:27:56 INFO C3P0ConnectionProvider:117 - HHH010002: C3P0 using driver: com.mysql.jdbc.Driver at URL: jdbc:mysql://***.***.***.***:****/*****
2015-08-26 15:27:56 INFO C3P0ConnectionProvider:118 - HHH000046: Connection properties: {user=****, password=****}
2015-08-26 15:27:56 INFO C3P0ConnectionProvider:121 - HHH000006: Autocommit mode: false
I see there is this line in the logs
Environment:239 - HHH000206: hibernate.properties not found
But i dont understand where it comes from and if it is the reason of the issue.
I already looked at
how to fix the error: "INFO: HHH000206: hibernate.properties not found"?
and similar posts
#Maciej Dobrowolski
I dont use Maven so i dont have pom.xml (i wont explain why here it is not related)
Here are the jars i have in the classpath:
/WebContent/WEB-INF/lib/hibernate-c3p0-5.0.0.Final.jar
/WebContent/WEB-INF/lib/hibernate-commons-annotations-4.0.5.Final.jar
/WebContent/WEB-INF/lib/hibernate-core-4.3.6.Final.jar
/WebContent/WEB-INF/lib/hibernate-entitymanager-4.3.6.Final.jar
/WebContent/WEB-INF/lib/hibernate-jpa-2.1-api-1.0.0.Final.jar
/WebContent/WEB-INF/lib/c3p0-0.9.5.1.jar

It could be silly but i think you need to add:
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
to your configuration, i hope this works for you,

Hibernate persistance.xml : Disabling contextual LOB creation as connection was null

My persistence.xml:
<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0" xmlns="http://java.sun.com/xml/ns/persistence">
<persistence-unit name="test" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<class>com.ibm.apiscanner.DTO.BaselineDTO</class>
<properties>
<property name="hibernate.connection.driver_class" value="com.ibm.db2.jcc.DB2Driver" />
<property name="hibernate.connection.url" value="jdbc:db2://localhost:{PORT}/{DB}" />
<property name="hibernate.connection.username" value="{user}" />
<property name="hibernate.connection.password" value="{password}" />
<property name="hibernate.dialect" value="org.hibernate.dialect.DB2Dialect"/>
<property name="show_sql" value="true"/>
<property name="hibernate.temp.use_jdbc_metadata_defaults" value="false"/>
</properties>
</persistence-unit>
</persistence>
I'm presented with the following:
Jan 22, 2015 9:16:48 PM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.DB2Dialect
Jan 22, 2015 9:16:48 PM org.hibernate.engine.jdbc.internal.LobCreatorBuilder useContextualLobCreation
INFO: HHH000422: Disabling contextual LOB creation as connection was null
The same url,user and password combination works when connecting via basic JDBC.
Anyone have suggestions?

That's an INFO message (nothing to worry about) because you set:
<property name="hibernate.temp.use_jdbc_metadata_defaults" value="false"/>
By default, if you don't specify this property, it will then be set to true, and a JDBC connection will be used to inspect the database metadata.
So you have two options:
You remove that property
You keep it, but you add this property as well:
hibernate.jdbc.lob.non_contextual_creation=true
but then you will get some other INFO message, telling that:
HHH000421: Disabling contextual LOB creation as hibernate.jdbc.lob.non_contextual_creation is true

It was a driver version problem for me,
-Make you have db2jcc4.jar and it is not conflicting with earlier version .
-Make sure you have specified currentschema

Configured SessionFactory: null

I have created basic hibernate application. It throw error message.
Error is:
Oct 18, 2012 3:36:13 PM org.hibernate.cfg.Environment <clinit>
INFO: Hibernate 3.2.5
Oct 18, 2012 3:36:13 PM org.hibernate.cfg.Environment <clinit>
INFO: hibernate.properties not found
Oct 18, 2012 3:36:13 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: Bytecode provider name : cglib
Oct 18, 2012 3:36:13 PM org.hibernate.cfg.Environment <clinit>
INFO: using JDK 1.4 java.sql.Timestamp handling
Oct 18, 2012 3:36:13 PM org.hibernate.cfg.Configuration configure
INFO: configuring from resource: /hibernate.cfg.xml
Oct 18, 2012 3:36:13 PM org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: Configuration resource: /hibernate.cfg.xml
Oct 18, 2012 3:36:13 PM org.hibernate.cfg.Configuration addResource
INFO: Reading mappings from resource : com/crmcall/entity/CallUsers.hbm.xml
Oct 18, 2012 3:36:13 PM org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues
INFO: Mapping class: com.crmcall.entity.CallUsers -> crmcallusers
Oct 18, 2012 3:36:13 PM org.hibernate.cfg.Configuration addResource
INFO: Reading mappings from resource : com/crmcall/entity/Customers.hbm.xml
Oct 18, 2012 3:36:14 PM org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues
INFO: Mapping class: com.crmcall.entity.Customers -> crmcustomermaster
Oct 18, 2012 3:36:14 PM org.hibernate.cfg.Configuration addResource
INFO: Reading mappings from resource : com/crmcall/entity/User.hbm.xml
Oct 18, 2012 3:36:14 PM org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues
INFO: Mapping class: com.crmcall.entity.User -> crmusers
Oct 18, 2012 3:36:14 PM org.hibernate.cfg.Configuration doConfigure
INFO: Configured SessionFactory: null
Initial SessionFactory creation failed.org.hibernate.MappingException: component class not found: string
Exception in thread "main" java.lang.ExceptionInInitializerError
at com.crmcall.util.HibernateUtil.<clinit>(HibernateUtil.java:27)
at com.crmcall.dao.UserDAO.<init>(UserDAO.java:23)
at com.crmcall.dao.UserDAO.main(UserDAO.java:36)
Caused by: org.hibernate.MappingException: component class not found: string
at org.hibernate.mapping.Component.getComponentClass(Component.java:104)
at org.hibernate.tuple.component.PojoComponentTuplizer.buildGetter(PojoComponentTuplizer.java:133)
at org.hibernate.tuple.component.AbstractComponentTuplizer.<init>(AbstractComponentTuplizer.java:43)
at org.hibernate.tuple.component.PojoComponentTuplizer.<init>(PojoComponentTuplizer.java:38)
at org.hibernate.tuple.component.ComponentEntityModeToTuplizerMapping.<init>(ComponentEntityModeToTuplizerMapping.java:52)
at org.hibernate.tuple.component.ComponentMetamodel.<init>(ComponentMetamodel.java:50)
at org.hibernate.mapping.Component.buildType(Component.java:152)
at org.hibernate.mapping.Component.getType(Component.java:145)
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:253)
at org.hibernate.mapping.RootClass.validate(RootClass.java:193)
at org.hibernate.cfg.Configuration.validate(Configuration.java:1102)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1287)
at com.crmcall.util.HibernateUtil.<clinit>(HibernateUtil.java:24)
... 2 more
Caused by: java.lang.ClassNotFoundException: string
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:100)
at org.hibernate.mapping.Component.getComponentClass(Component.java:101)
This is my Hibernate.cfg.xml file:
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://192.168.1.5:3306/crmtest</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">root</property>
<property name="hibernate.hbm2ddl.auto">create-drop</property>
<property name="show_sql">true</property>
<property name="format_sql">true</property>
<!-- Enable Hibernate automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<mapping resource="com/crmcall/entity/CallUsers.hbm.xml"/>
<mapping resource="com/crmcall/entity/Customers.hbm.xml"/>
<mapping resource="com/crmcall/entity/User.hbm.xml"/>
</session-factory>
</hibernate-configuration>
This is my User.hbm.xml
<hibernate-mapping>
<class name="com.crmcall.entity.User" table="crmusers">
<composite-id name="userPK" >
<key-property name="businessUnit" column="BusinessUnit" type="string"/>
<key-property name="userID" column="UserID" type="string"/>
</composite-id>
<property name="recID" >
<column name="RecID"/>
</property>
<property name="password">
<column name="Password"/>
</property>
<property name="userName">
<column name="UserName"/>
</property>
<property name="userType">
<column name="UserType"/>
</property>
<property name="userLevel">
<column name="UserLevel"/>
</property>
<property name="customerCode">
<column name="CustomerCode"/>
</property>
<property name="customerCodeson">
<column name="CustomerCodeson"/>
</property>
<property name="locationCode">
<column name="LocationCode"/>
</property>
<property name="lastUpdatedBy">
<column name="LastUpdatedBy"/>
</property>
<property name="lastUpdatedOn" type="timestamp">
<column name="LastUpdatedOn"/>
</property>
<property name="email" type="string">
<column name="Email"/>
</property>
</class>
</hibernate-mapping>
This is my calling place :
public class UserDAO {
private Session session = null;
public UserDAO() {
session = HibernateUtil.currentSession();
}
public List<User> getAllUsers() {
Transaction tn = session.beginTransaction();
List<User> users = session.createQuery("from crmusers cu order by cu.UserID").list();
System.out.println("==" + users.size());
tn.commit();
return users;
}
public static void main(String[] args){
UserDAO userDAO = new UserDAO();
userDAO.getAllUsers();
}
}
This is my project folder structre:
Please tell me what is an issue in my code?
Thanks in advance..

In User.hbm.xml you have to use type="java.lang.String" (with a big 'S'). That's it.

AS I understand the problem in your code was caused by your User.hbm.xml mapping file. To be more precised by type="string" attribute of composite-id tab.
As I understand you don't need to put type attribute obligatory so try to skip it at all; hibernate should detect it automatically. I'm not sure in last sentece because I have not used composite keys, but there are a lot of examples where peoples don't define type explicitly.

Hmmm, in your mapping file you have
<key-property name="businessUnit" column="BusinessUnit" type="string"/>
<key-property name="userID" column="UserID" type="string"/>
That should be ...type="java.lang.String"... instead, but most likely you really don't need it - Hibernate will make a (usually very good) educated guess.
Cheers,

Hibernate use the reflection to determine the mapping type at runtime.
It seems your mapping is correct, But if you still getting the same problem.
I will suggest you to remove the type attribute for the time being test, from all the String type properties such as email,businessUnit,userId
try this way for all the String type properties
<property name="email">
<column name="Email"/>
</property>
or you can try with java.lang.String also
<property name="email" type="java.lang.String">
<column name="Email"/>
</property>

Both "string" and "java.lang.String" are aliases for org.hibernate.type.StringType, so either should work in terms of naming types.
I am actually not so sure the problem is in the mapping for User. That mapping looks fine. Based on that exception I would more expect that somewhere you have
<composite-id ... class="string">
or
<component ... class="string">
or something like that.

<composite-id name="userPK" >
<key-property name="businessUnit" column="BusinessUnit" type="String"/>
<key-property name="userID" column="UserID" type="String"/>
</composite-id>
try with changing string to String

[PersistenceUnit: <name>]: unable to build EntityManagerFactory

As stated on the subject, my problem is the EntityManagerFactory cannot be built. I am using Maven + Hibernate. I am connecting to a MySQL DB (<jdbc://mysql://localhost:3306/<dbname>).
The weird thing here is during debugging in Eclipse, it is working fine. But when I build it using Maven build, the JAR file is throwing such error. I checked the Manifest file already and all the necessary JARs were included in the Class-Path. Below is the error of the JAR displayed in the console:
===========================================================================
Feb 3, 2012 5:01:16 PM org.hibernate.annotations.common.Version <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {4.0.1.Final}
Feb 3, 2012 5:01:16 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.0.1.Final}
Feb 3, 2012 5:01:16 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
Feb 3, 2012 5:01:16 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
Feb 3, 2012 5:01:16 PM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000402: Using Hibernate built-in connection pool (not for production use!)
Feb 3, 2012 5:01:16 PM class <name>.<name>.<name> <name>
SEVERE: [ERROR]: [PersistenceUnit: <name>] Unable to build EntityManagerFactory
[ERROR]: [PersistenceUnit: <name>] Unable to build EntityManagerFactory
===========================================================================
below is my persistence.xml:
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0">
<persistence-unit name="<name>">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>classname</class>
<properties>
<!-- <property name="hibernate.ejb.cfgfile" value="/classifyPE.cfg.xml"/> -->
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver" />
<property name="hibernate.connection.password" value="<value>" />
<property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/<name>" />
<property name="hibernate.connection.username" value="root" />
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
</properties>
</persistence-unit>
</persistence>
===========================================================================
What am I doing wrong here? Or what am I lacking?
As mentioned, it's working on Debug. But when I package it into JAR,(with all the necessary JARs present in the libs folder), it's not.

add this in your xml file
<property name="javax.persistence.validation.mode">none</property>

<class>classname</class>
I suspect your entity is not named classname, so try specifying the full classpath-name (for example foo.bar.realclassname with realclassname being the name of your entity-class).

The persistence.xml file is supposed to go in the META-INF folder at the root of the jar. Check if it is there or not. I am guessing that this is purely a classpath related issue.

Try to rename your persistence unit. This is important, since the name is used to identify persistence unit related to each EntityManager.
So:
<persistence-unit name="<name>">
should be replaced with (for instance):
<persistence-unit name="myUnit">