Grouper Developers Forum

["GW Brown, Information Systems and Computing" <>]

Could it be a permission problem reading a file? Are you adding 
WEB-INF/classes to the classpath or getting config from elsewhere?

You can add

        -Xrunjdwp:transport=dt_socket,server=y,address=4001,suspend=y
to the command line java invocation and the process will pause until you 
connect with a debugger which would let you catch the error in situ.

Gary



--On 30 April 2008 16:46 -0400 "Cramton, James" <> 
wrote:

> I'm sure this is not a problem with Grouper, but with our provisioning
> scripts that call the Grouper API. But I've beat my head against this for
> a bit, and my brain cells are probably in mourning for Abby Hoffman, and
> therefore refuse to operate above par.  Any suggestions for resolving
> this would be welcome, and I'll keep this as short as possible.
>
>
>
> We provision our grouper from a separate Java process called from a perl
> script that sets up a reasonable classpath, along with other environment
> variables. The classpath includes the grouper.jar in our tomcat webapps
> directory, so we know it's in sync with the webapp, which works fine.
> When we create a GrouperSession, we get the following error, which has a
> null message.
>
>
>
>
>
>
>
> Apr 30, 2008 4:44:15 PM edu.internet2.middleware.grouper.ErrorLog fatal
>
> SEVERE: [edu.internet2.middleware.grouper.internal.dao.hib3.Hib3DAO]
> unable to initialize hibernate: null
>
> Exception in thread "main" java.lang.ExceptionInInitializerError
>
>         at
> edu.internet2.middleware.grouper.internal.dao.hib3.Hib3DAO.<clinit>(Hib3D
> AO.java:71)
>
>         at
> edu.internet2.middleware.grouper.internal.dao.hib3.Hib3DAOFactory.getGrou
> p(Hib3DAOFactory.java:57)
>
>         at
> edu.internet2.middleware.grouper.GrouperSourceAdapter.getSubject(GrouperS
> ourceAdapter.java:97)
>
>         at
> edu.internet2.middleware.grouper.subj.SourcesXmlResolver.find(SourcesXmlR
> esolver.java:87)
>
>         at
> edu.internet2.middleware.grouper.subj.CachingResolver.find(CachingResolve
> r.java:67)
>
>         at
> edu.internet2.middleware.grouper.subj.ValidatingResolver.find(ValidatingR
> esolver.java:61)
>
>         at
> edu.internet2.middleware.grouper.SubjectFinder.findById(SubjectFinder.jav
> a:67)
>
>         at edu.brown.grouper.GrouperUtils.newSession(Unknown Source)
>
>         at StemInfo.main(Unknown Source)
>
> Caused by: java.lang.NoClassDefFoundError
>
>         at org.apache.log4j.Logger.getLogger(Logger.java:94)
>
>         at
> com.mchange.v2.log.log4j.Log4jMLog.getMLogger(Log4jMLog.java:51)
>
>         at com.mchange.v2.log.MLog.getLogger(MLog.java:145)
>
>         at com.mchange.v2.log.MLog.<clinit>(MLog.java:72)
>
>         at com.mchange.v2.c3p0.DataSources.<clinit>(DataSources.java:59)
>
>         at
> org.hibernate.connection.C3P0ConnectionProvider.configure(C3P0ConnectionP
> rovider.java:154)
>
>         at
> org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(
> ConnectionProviderFactory.java:124)
>
>         at
> org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(
> ConnectionProviderFactory.java:56)
>
>         at
> org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactor
> y.java:414)
>
>         at
> org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:62)
>
>         at
> org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2073)
>
>         at
> org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:12
> 98)
>
>         at
> edu.internet2.middleware.grouper.internal.dao.hib3.Hib3DAO.<clinit>(Hib3D
> AO.java:66)
>
>         ... 8 more
>
>
>
>
>
> Which I trace to the following lines of code in lines 46 -- 57 of
> Hib3DAO.java:
>
>
>
> abstract class Hib3DAO {
>
>
>
>   // PRIVATE CLASS CONSTANTS //
>
>   private static final Configuration  CFG;
>
>   private static final SessionFactory FACTORY;
>
>
>
>   // STATIC //
>
>   static {
>
>     try {
>
>       // Find the custom configuration file
>
>       if (Hib3DAO.class.getResource(GrouperConfig.HIBERNATE_CF) == null)
> {
>
>         throw new RuntimeException("Cant find resource " +
> GrouperConfig.HIBERNATE_CF + ", make sure it is on the classpath.");
>
>       }
>
> // JFC: OK to here
>
>       InputStream in  =
> Hib3DAO.class.getResourceAsStream(GrouperConfig.HIBERNATE_CF);
>
>       Properties  p   = new Properties();
>
>       p.load(in);
>
>       // And now load all configuration information
>
>       CFG = new Configuration()
>
>         .addProperties(p)
>
>         .addClass(Hib3AttributeDAO.class)
>
>         .addClass(Hib3CompositeDAO.class)
>
>         .addClass(Hib3FieldDAO.class)
>
>         .addClass(Hib3GroupDAO.class)
>
>         .addClass(Hib3GroupTypeDAO.class)
>
>         .addClass(Hib3GroupTypeTupleDAO.class)
>
>         .addClass(Hib3GrouperSessionDAO.class)
>
>         .addClass(Hib3MemberDAO.class)
>
>         .addClass(Hib3MembershipDAO.class)
>
>         .addClass(Hib3RegistrySubjectDAO.class)
>
>         .addClass(Hib3RegistrySubjectAttributeDAO.class)
>
>         .addClass(Hib3StemDAO.class)
>
>         ;
>
>       // And finally create our session factory
>
>       FACTORY = CFG.buildSessionFactory();
>
> // JFC: Throws an exception with a null message by here
>
>     }
>
>     catch (Throwable t) {
>
>       String msg = "unable to initialize hibernate: " + t.getMessage();
>
>       ErrorLog.fatal(Hib3DAO.class, msg);
>
>       throw new ExceptionInInitializerError(t);
>
>     }
>
>   } // static
>
>
>
> I've verified that all of the classed added in the Configuration
> constructor are present, as are their xml files. And again, the web
> interface does not have this problem, so it's clearly something
> environmental about our provisioning script.
>
>
>
> Thoughts on where to look next?
>
>
>
> Thanks!
>
>
>
> James Cramton
>
> Lead Programmer/Analyst
>
>
>
> 401 345 9795



----------------------
GW Brown, Information Systems and Computing