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