Jonathan Albornoz [https://community.jboss.org/people/betoflint] created the discussion "JDBC Driver class not found" To view the discussion, visit: https://community.jboss.org/message/788572#788572 -------------------------------------------------------------- Hi, i have a problem, i have jbpm 5.4 with oracle and jboss 7.1.1. When i want run my project (example with persistence) i have the next error. I put the ojdbc6.jar in db folder, and lib folder. I was made all the test that i imagine...any help please...thanks!!! *console log.* Exception in thread "main" javax.persistence.PersistenceException: [PersistenceUnit: org.jbpm.persistence.jpa] Unable to build EntityManagerFactory           at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:677)           at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:126)           at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:52)           at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:34)           at com.sample.fefefefefe.main(fefefefefe.java:26) Caused by: org.hibernate.HibernateException: JDBC Driver class not found: oracle.jdbc.driver.OracleDriver           at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:89)           at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:137)           at org.hibernate.ejb.InjectionSettingsFactory.createConnectionProvider(InjectionSettingsFactory.java:29)           at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:89)           at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2119)           at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2115)           at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1339)           at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)           at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)           ... 4 more Caused by: java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver           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)           at java.lang.Class.forName0(Native Method)           at java.lang.Class.forName(Unknown Source)           at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:192)           at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:84)           ... 12 more 0    06/01 19:48:39,121[main] ERROR hibernate.connection.DriverManagerConnectionProvider.configure  - JDBC Driver class not found: oracle.jdbc.driver.OracleDriver java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver           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)           at java.lang.Class.forName0(Native Method)           at java.lang.Class.forName(Unknown Source)           at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:192)           at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:84)           at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:137)           at org.hibernate.ejb.InjectionSettingsFactory.createConnectionProvider(InjectionSettingsFactory.java:29)           at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:89)           at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2119)           at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2115)           at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1339)           at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)           at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)           at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:126)           at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:52)           at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:34)           at com.sample.fefefefefe.main(fefefefefe.java:26) *My java code:* package com.sample; import javax.persistence.EntityManagerFactory; import javax.persistence.Persistence; import org.drools.KnowledgeBase; import org.drools.KnowledgeBaseFactory; import org.drools.builder.KnowledgeBuilder; import org.drools.builder.KnowledgeBuilderFactory; import org.drools.builder.ResourceType; import org.drools.io.ResourceFactory; import org.drools.persistence.jpa.JPAKnowledgeService; import org.drools.runtime.Environment; import org.drools.runtime.EnvironmentName; import org.drools.runtime.StatefulKnowledgeSession; public class fefefefefe {             /**            * @param args            */           public static void main(String[] args) {                     // TODO Auto-generated method stub                     KnowledgeBase kbase = readKnowledgeBase();                     EntityManagerFactory emf = Persistence.createEntityManagerFactory( "org.jbpm.persistence.jpa" );                     Environment env = KnowledgeBaseFactory.newEnvironment();                     env.set( EnvironmentName.ENTITY_MANAGER_FACTORY, emf );                     // create a new knowledge session that uses JPA to store the runtime state                     StatefulKnowledgeSession ksession =JPAKnowledgeService.newStatefulKnowledgeSession( kbase, null, env );                     int sessionId = ksession.getId();                     // invoke methods on your method here                     ksession.startProcess( "com.sample.bpmn.hello" );                     ksession.dispose();           }           private static KnowledgeBase readKnowledgeBase() {                     KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();                     kbuilder.add(ResourceFactory.newClassPathResource("sample.bpmn"), ResourceType.BPMN2);                     return kbuilder.newKnowledgeBase();           } } *My persistence file inside my project. Resource/Meta-Inf* <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <persistence version="1.0" xsi:schemaLocation=     " http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence      http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd      http://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm      http://java.sun.com/xml/ns/persistence/orm_1_0.xsd http://java.sun.com/xml/ns/persistence/orm_1_0.xsd"   xmlns:orm=" http://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm"   xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance http://www.w3.org/2001/XMLSchema-instance"   xmlns=" http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence">   <persistence-unit name="org.jbpm.persistence.jpa" transaction-type="JTA">     <provider>org.hibernate.ejb.HibernatePersistence</provider>     <mapping-file>META-INF/JBPMorm.xml</mapping-file>     <class>org.drools.persistence.info.SessionInfo</class>     <class>org.jbpm.persistence.processinstance.ProcessInstanceInfo</class>     <class>org.drools.persistence.info.WorkItemInfo</class>     <properties>     <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect"/>       <property name="hibernate.connection.driver_class" value="oracle.jdbc.driver.OracleDriver"/>       <property name="hibernate.connection.url" value="jdbc:oracle:thin:@192.168.20.200:1521:orcl2" />       <property name="hibernate.connection.username" value="jbpm5"/>       <property name="hibernate.connection.password" value="ryc"/>       <property name="hibernate.connection.autocommit" value="false" />       <property name="hibernate.max_fetch_depth" value="3"/>       <property name="hibernate.hbm2ddl.auto" value="create" />       <property name="hibernate.show_sql" value="false" />       <property name="javax.persistence.jdbc.driver" value="oracle.jdbc.driver.OracleDriver"/>     </properties>   </persistence-unit> </persistence> //******************************************************************************************** -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/788572#788572] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]