[Persistence, JBoss/CMP, Hibernate, Database] - Remove item from CMR
by dani-cas
This should be fairly easy, yet I am getting this exception when removing a item from a relation that is working fine.
I have the following code:
| public boolean borrarProceso(Integer id, String tipo, String userName){
|
| InitialContext ic = null;
| boolean encontro = false;
| AbogadoBeanLocalHome home;
| AdministrativoBeanLocal mover = null;;
| try {
| ic = new InitialContext();
| home = (AbogadoBeanLocalHome) ic.lookup("AbogadoBeanLocal");
| System.out.println("en cambiarAbogadoEnProceso obtengo interface home del old");
| AbogadoBeanLocal abog = home.findByPrimaryKey(userName);
| Collection administrativos = abog.getProcesosAdministrativos();
|
| //Collection administrativosP = new ArrayList();
| //Quiro el proceso que quiero
| Iterator it = administrativos.iterator();
| System.out.println("tengo procesos: "+administrativos.size());
| while(it.hasNext()){
| AdministrativoBeanLocal proc = (AdministrativoBeanLocal) it.next();
| if(id.compareTo(proc.getId())!=0){
| System.out.println("Proceso: "+proc.getId()+" estoy buscando el: "+id);
| //guardo todos con id diff
| //administrativosP.add(proc);
| }else{
| // HERE IS THE IMPORTANT STUFF
| encontro = true;
| //seleccion el unico con id y lo guardo
| mover = (AdministrativoBeanLocal) proc;
| administrativos.remove(mover);
| mover.remove();
| //ENDS HERE
| }
|
| }
| if(encontro){
| System.out.println("Ahora tengo uno menos: "+administrativos.size());
| //Hago set de los nuevos procesos
| abog.setProcesosAdministrativos(administrativos);
| return true;
| }else{
| System.out.println("No encontro el proceso buscado");
| return false;
| }
| }catch (NamingException e) {
| // TODO Auto-generated catch block
| e.printStackTrace();
| return false;
| } catch (FinderException e) {
| // TODO Auto-generated catch block
| e.printStackTrace();
| return false;
| } catch (EJBException e) {
| // TODO Auto-generated catch block
| e.printStackTrace();
| }
| System.out.println("Fallo borrado en centralbean");
| return false;
|
| }
|
In breaf I search for a bean, and try to remove it, but I cant seem to make it work, sometimes the method works, but when I try to do it agoin the following eception is thrown:
| 12:48:49,531 ERROR [STDERR] java.rmi.ServerException: RuntimeException; nested exception is:
| java.lang.IllegalStateException: Underlying collection has been modified
| 12:48:49,531 ERROR [STDERR] at org.jboss.ejb.plugins.LogInterceptor.handleException(LogInterceptor.java:421)
| 12:48:49,531 ERROR [STDERR] at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:209)
| 12:48:49,531 ERROR [STDERR] at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:136)
| 12:48:49,531 ERROR [STDERR] at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:648)
| 12:48:49,546 ERROR [STDERR] at org.jboss.ejb.Container.invoke(Container.java:954)
| 12:48:49,546 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| 12:48:49,546 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
| 12:48:49,546 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
| 12:48:49,546 ERROR [STDERR] at java.lang.reflect.Method.invoke(Unknown Source)
| 12:48:49,546 ERROR [STDERR] at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
| 12:48:49,546 ERROR [STDERR] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
| 12:48:49,546 ERROR [STDERR] at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
| 12:48:49,546 ERROR [STDERR] at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
| 12:48:49,546 ERROR [STDERR] at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
| 12:48:49,546 ERROR [STDERR] at org.jboss.invocation.local.LocalInvoker$MBeanServerAction.invoke(LocalInvoker.java:169)
| 12:48:49,546 ERROR [STDERR] at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:118)
| 12:48:49,546 ERROR [STDERR] at org.jboss.invocation.InvokerInterceptor.invokeLocal(InvokerInterceptor.java:206)
| 12:48:49,546 ERROR [STDERR] at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:192)
| 12:48:49,546 ERROR [STDERR] at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:61)
| 12:48:49,546 ERROR [STDERR] at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:70)
| 12:48:49,546 ERROR [STDERR] at org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionInterceptor.java:112)
| 12:48:49,546 ERROR [STDERR] at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:100)
| 12:48:49,546 ERROR [STDERR] at $Proxy64.borrarProceso(Unknown Source)
| 12:48:49,546 ERROR [STDERR] at org.invias.struts.Service.borrarProceso(Service.java:192)
| 12:48:49,546 ERROR [STDERR] at org.invias.struts.action.BorrarProcesoDeUsuarioAction.execute(BorrarProcesoDeUsuarioAction.java:40)
| 12:48:49,546 ERROR [STDERR] at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
| 12:48:49,546 ERROR [STDERR] at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
| 12:48:49,546 ERROR [STDERR] at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
| 12:48:49,546 ERROR [STDERR] at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
| 12:48:49,546 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
| 12:48:49,906 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
| 12:48:49,906 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
| 12:48:49,906 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| 12:48:49,906 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
| 12:48:49,906 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
| 12:48:49,906 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| 12:48:49,906 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
| 12:48:49,906 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
| 12:48:49,906 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
| 12:48:49,906 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
| 12:48:49,906 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
| 12:48:49,906 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
| 12:48:49,906 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
| 12:48:49,906 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
| 12:48:49,906 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
| 12:48:49,906 ERROR [STDERR] at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
| 12:48:49,906 ERROR [STDERR] at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
| 12:48:49,906 ERROR [STDERR] at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
| 12:48:49,906 ERROR [STDERR] at java.lang.Thread.run(Unknown Source)
| 12:48:49,906 ERROR [STDERR] Caused by: java.lang.IllegalStateException: Underlying collection has been modified
| 12:48:49,906 ERROR [STDERR] at org.jboss.ejb.plugins.cmp.jdbc.bridge.RelationSet$1.next(RelationSet.java:404)
| 12:48:49,906 ERROR [STDERR] at org.invias.ejb.CentralBean.borrarProceso(CentralBean.java:596)
| 12:48:49,906 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| 12:48:49,906 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
| 12:48:49,906 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
| 12:48:49,906 ERROR [STDERR] at java.lang.reflect.Method.invoke(Unknown Source)
| 12:48:49,906 ERROR [STDERR] at org.jboss.invocation.Invocation.performCall(Invocation.java:359)
| 12:48:49,906 ERROR [STDERR] at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:237)
| 12:48:49,906 ERROR [STDERR] at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:158)
| 12:48:49,906 ERROR [STDERR] at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:169)
| 12:48:49,906 ERROR [STDERR] at org.jboss.ws.server.ServiceEndpointInterceptor.invoke(ServiceEndpointInterceptor.java:64)
| 12:48:49,906 ERROR [STDERR] at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:63)
| 12:48:49,906 ERROR [STDERR] at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:121)
| 12:48:49,906 ERROR [STDERR] at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:350)
| 12:48:49,906 ERROR [STDERR] at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:181)
| 12:48:49,906 ERROR [STDERR] at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:168)
| 12:48:49,906 ERROR [STDERR] at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:205)
| 12:48:49,906 ERROR [STDERR] ... 47 more
| 12:48:49,906 INFO [STDOUT] ha fallado el borrado
|
I am allmost sure that I am deleting the item wrongly, but I have looked every where for a way to erase beans in a CMR but I havent found much.
All the help is greatly appreciated.
Daniel
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19 years, 4 months
[JBossCache] - Cache, missing entries
by baranowb
I have encountered some problems with JBCache.
I have transactional enviroment. changes are commited to cache upon tx commit phase - classes that implement TransactionalAction are executed.
Hoever it misses some entries - cache doesnt retain entries it should upon concurrent tx running. Here is what is happening:
1)Tx[1] reads data to cache and stores to local Map
2)Tx[2] reads ......
3)Tx[1] adds "ALA"
4)Tx[1] adds "BEATA"
5)Tx[2] removes "OLA" - last 3 operations are performed on local copies each tx stores in Map
6)Tx[1] Commits - two new entries are added to Tx - they are present
7)Tx[2] commits - one entry is removed
Cache lacks "ALA" and "BEATA". In fact if our caching structure doesnt write all entries - to cache upon commit, those entries are missed too.
on steps 1-2 TreeCache.getKeys(nodeName) is called, and for each key value from that node is retrieved, retrieed values are stored in local Map - which is not shared among tx, each has its local map.
on steps 3-5 remove(key) and put(key,value) opearations are performed on local Maps - no cache operations are performed.
in those steps TransactionAction's are added to SynchronizationHandler lists are added.
On 6 tx.commit/TransactionManager.commit is called. actions stored in SynchHandler call TreeCache.put(nodeName,key,object) and remove(nodeName,key) (it could, if something was removed)
- putting again and removing undeaded entries - whole copy of map is put into cache again, and some entries are removed
On 7 is the same
On steps 6-7 if whole local Map is not put into cache it lacks those entries which has not been put again. I mean if only updated, added entries are put in cache, all other are not retained.
Is this expected behaviour? I have used jbcache 1.2 or 1.3 and newest version. Isolation level is READ COMMITED, with 1.4 I have tried Optimisitc locking scheme.
Any suggestions would be highly welcome.
Kind regards
View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3995372#3995372
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19 years, 4 months