[jboss-user] [jBPM] - Re: Eclipse -jBPM5/CR1 - Human Task View

[candy_633]

candy_633 [http://community.jboss.org/people/candy_633] created the discussion

"Re: Eclipse -jBPM5/CR1 - Human Task View"

To view the discussion, visit: http://community.jboss.org/message/588166#588166

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I also meet some problem when implement Human Task:
1) At first, I meet the following errors when I run Human Task:  (then, according to the error message, I *update slf4j-api-1.6.0.jar to slf4j-log4j12-1.6.1.jar*

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See  http://www.slf4j.org/codes.html#StaticLoggerBinder http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
javax.persistence.PersistenceException: [PersistenceUnit: org.jbpm.task] 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.ProcessTest.main(ProcessTest.java:57)
Caused by: org.hibernate.HibernateException: JDBC Driver class not found: org.h2.Driver
    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.buildSettings(Configuration.java:2101)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1325)
    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: org.h2.Driver
    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:123)
    at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:84)

2) *After I update to slf4j-log4j12-1.6.1.jar, another error still shows:*

"java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
    at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:151)
    at org.hibernate.ejb.Ejb3Configuration.<clinit>(Ejb3Configuration.java:107)
    at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:124)
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:52)
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:34)
    at com.sample.ProcessTest.main(ProcessTest.java:57)
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
    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)
    ... 6 more
 http://community.jboss.org/message/581435#581435 http://community.jboss.org/message/581435#581435? "


The problem is with this line:
  EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.jbpm.task");

Is there anything wrong with the path of this jar?

3) where to You'll have to update your eclipse to the latest Drools snapshot plugin?

I appreciate your help so much!
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