[jbdevstudio-users] please provid solution for following error generated at the time of instance creation ?

: could not get a field value by reflection getter of org.jbpm.job.Job.id DirectPropertyAccessor.java:35) UnsavedValueFactory.java:44) PropertyFactory.java:44) EntityMetamodel.java:123) AbstractEntityPersister.java:434) SingleTableEntityPersister.java:109) PersisterFactory.java:55) SessionFactoryImpl.java:226) Configuration.java:1300) DbPersistenceServiceFactory.java:91) JtaDbPersistenceService.java:42) JtaDbPersistenceService.java:27) JtaDbPersistenceServiceFactory.java:17) Services.java:144) Services.java:183) JbpmContext.java:628) JbpmContext.java:569) JbpmContext.java:319) HelloWorldAction.java:41) ExecuteAction.java:58) AbstractExecuteAction.java:67) ActionCommandBase.java:51) ChainBase.java:191) LookupCommand.java:305) ChainBase.java:191) ComposableRequestProcessor.java:283) ActionServlet.java:1913) ActionServlet.java:449) HttpServlet.java:617) HttpServlet.java:717) ApplicationFilterChain.java:290) ApplicationFilterChain.java:206) ReplyHeaderFilter.java:96) ApplicationFilterChain.java:235) ApplicationFilterChain.java:206) StandardWrapperValve.java:230) StandardContextValve.java:173) SecurityAssociationValve.java:182) JaccContextValve.java:84) StandardHostValve.java:128) ErrorReportValve.java:104) CachedConnectionValve.java:157) StandardEngineValve.java:109) CoyoteAdapter.java:241) Http11Processor.java:844) Http11Protocol.java:583) JIoEndpoint.java:447) Thread.java:595) java.lang.IllegalArgumentException UnsafeFieldAccessorImpl.java:37) UnsafeLongFieldAccessorImpl.java:42) UnsafeLongFieldAccessorImpl.java:18) Field.java:357) DirectPropertyAccessor.java:32) : could not get a field value by reflection getter of org.jbpm.job.Job.id DirectPropertyAccessor.java:35) UnsavedValueFactory.java:44) PropertyFactory.java:44) EntityMetamodel.java:123) AbstractEntityPersister.java:434) SingleTableEntityPersister.java:109) PersisterFactory.java:55) SessionFactoryImpl.java:226) Configuration.java:1300) DbPersistenceServiceFactory.java:91) JtaDbPersistenceService.java:42) JtaDbPersistenceService.java:27) JtaDbPersistenceServiceFactory.java:17) Services.java:144) Services.java:183) JbpmContext.java:628) JbpmContext.java:569) JbpmContext.java:319) HelloWorldAction.java:41) ExecuteAction.java:58) AbstractExecuteAction.java:67) ActionCommandBase.java:51) ChainBase.java:191) LookupCommand.java:305) ChainBase.java:191) ComposableRequestProcessor.java:283) ActionServlet.java:1913) ActionServlet.java:449) HttpServlet.java:617) HttpServlet.java:717) ApplicationFilterChain.java:290) ApplicationFilterChain.java:206) ReplyHeaderFilter.java:96) ApplicationFilterChain.java:235) ApplicationFilterChain.java:206) StandardWrapperValve.java:230) StandardContextValve.java:173) SecurityAssociationValve.java:182) JaccContextValve.java:84) StandardHostValve.java:128) ErrorReportValve.java:104) CachedConnectionValve.java:157) StandardEngineValve.java:109) CoyoteAdapter.java:241) Http11Processor.java:844) Http11Protocol.java:583) JIoEndpoint.java:447) Thread.java:595) java.lang.IllegalArgumentException UnsafeFieldAccessorImpl.java:37) UnsafeLongFieldAccessorImpl.java:42) UnsafeLongFieldAccessorImpl.java:18) Field.java:357) DirectPropertyAccessor.java:32) UnsafeFieldAccessorImpl.java:37) UnsafeLongFieldAccessorImpl.java:42) UnsafeLongFieldAccessorImpl.java:18) Field.java:357) DirectPropertyAccessor.java:32) UnsavedValueFactory.java:44) PropertyFactory.java:44) EntityMetamodel.java:123) AbstractEntityPersister.java:434) SingleTableEntityPersister.java:109) PersisterFactory.java:55) SessionFactoryImpl.java:226) Configuration.java:1300) DbPersistenceServiceFactory.java:91) JtaDbPersistenceService.java:42) JtaDbPersistenceService.java:27) JtaDbPersistenceServiceFactory.java:17) Services.java:144) Services.java:183) JbpmContext.java:628) JbpmContext.java:569) JbpmContext.java:319) HelloWorldAction.java:41) ExecuteAction.java:58) AbstractExecuteAction.java:67) ActionCommandBase.java:51) ChainBase.java:191) LookupCommand.java:305) ChainBase.java:191) ComposableRequestProcessor.java:283) ActionServlet.java:1913) ActionServlet.java:449) HttpServlet.java:617) HttpServlet.java:717) ApplicationFilterChain.java:290) ApplicationFilterChain.java:206) ReplyHeaderFilter.java:96) ApplicationFilterChain.java:235) ApplicationFilterChain.java:206) StandardWrapperValve.java:230) StandardContextValve.java:173) SecurityAssociationValve.java:182) JaccContextValve.java:84) StandardHostValve.java:128) ErrorReportValve.java:104) CachedConnectionValve.java:157) StandardEngineValve.java:109) CoyoteAdapter.java:241) Http11Processor.java:844) Http11Protocol.java:583) JIoEndpoint.java:447) Thread.java:595) Posted by forums Original post: https://community.jboss.org/message/881786#881786