arash norouz [http://community.jboss.org/people/arashbahal] created the discussion "problem with jbpm on weblogic" To view the discussion, visit: http://community.jboss.org/message/569094#569094 -------------------------------------------------------------- hi all i am new to jbpm. i am trying to implement some web services based on jbpm. i have implemented my services and test it in stand alone mode and it is ok! but when i am trying to deploy my services on weblogic server it is thrown by some exceptions! *org.hibernate.HibernateException: Errors in named queries: findTasks, findMessages, findTimers, findGroupsByUserAndGroupType, findProcessInstanceIds, findJo         at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:397)         at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1327)         at org.jbpm.pvm.internal.wire.descriptor.HibernateSessionFactoryDescriptor.construct(HibernateSessionFactoryDescriptor.java:62)         at org.jbpm.pvm.internal.wire.WireContext.construct(WireContext.java:487)         at org.jbpm.pvm.internal.wire.WireContext.create(WireContext.java:466)         Truncated. see log file for complete stacktrace* after searching the internet i have found that adding *<property name="hibernate.query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactory</property>* to hibernate config fix the problem. i have tried the solution and it was successful, but after deploying when i want to run one of my services it throws another exception my code snippet is: *ProcessInstance processInstance = executionService                     .startProcessInstanceByKey(processDefinitionId, parameters,                             userId + "-" + sequence);* and the exception is : *Error invoking com.pardis.notification.core.Services (POJO): org.hibernate.QueryException<ComponentHandler.handleRequest:144> <WSEE:21>org.hibernate.QueryException: Incorrect query syntax [select new map( idProperty.objectName as objectName, idProperty.deployment.dbid as deploymentDbid )* * * *Caused by: java.lang.NullPointerException         at java.lang.Class.forName0(Native Method)         at java.lang.Class.forName(Class.java:169)         at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:123)         at org.hibernate.hql.classic.SelectParser.token(SelectParser.java:96)         at org.hibernate.hql.classic.ClauseParser.token(ClauseParser.java:109)         at org.hibernate.hql.classic.ClauseParser.end(ClauseParser.java:136)         at org.hibernate.hql.classic.PreprocessingParser.end(PreprocessingParser.java:145)         at org.hibernate.hql.classic.ParserHelper.parse(ParserHelper.java:52)         at org.hibernate.hql.classic.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:239)* please help me about this situation thanks in advance -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/569094#569094] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]