Hello guys,
I’m starting to learn Vaadin recently and I think I’ve found my new default GUI framework. After finishing current project in Vaadin I hope to migrate all our project from JSF to Vaadin. The main reason is that Vaadin has a bright future and source code is very easy to understand what’s going on in background which is crucial if you want to understand the framework in deep. But …
I think I’ve found a showstopper for our migration plans (I really hope not).
Looking for solution on this forum I’ve found that this problem exists for a long time and nothing happened or changed.
The problem is if you have a form in which has one or more collection/list properties shown as OptionGroup (mutiselect) field. The solution for this problem on forum was to convert/replace on the JPA Entity side this collections/list with Set. This could work until you try to persist this data with eclipselink. The error you will get is:
Internal Exception: java.lang.reflect.InvocationTargetException
Target Invocation Exception: java.lang.CloneNotSupportedException: java.util.Collections$UnmodifiableSet
at org.eclipse.persistence.exceptions.QueryException.methodInvocationFailed(QueryException.java:805)
at org.eclipse.persistence.internal.queries.InterfaceContainerPolicy.invokeCloneMethodOn(InterfaceContainerPolicy.java:245)
at org.eclipse.persistence.internal.queries.InterfaceContainerPolicy.cloneFor(InterfaceContainerPolicy.java:98)
at org.eclipse.persistence.mappings.CollectionMapping.buildCloneForPartObject(CollectionMapping.java:200)
at org.eclipse.persistence.internal.indirection.UnitOfWorkQueryValueHolder.buildCloneFor(UnitOfWorkQueryValueHolder.java:51)
at org.eclipse.persistence.internal.indirection.UnitOfWorkValueHolder.instantiateImpl(UnitOfWorkValueHolder.java:161)
at org.eclipse.persistence.internal.indirection.UnitOfWorkValueHolder.instantiate(UnitOfWorkValueHolder.java:222)
at org.eclipse.persistence.internal.indirection.DatabaseValueHolder.getValue(DatabaseValueHolder.java:88)
at org.eclipse.persistence.indirection.IndirectSet.buildDelegate(IndirectSet.java:192)
at org.eclipse.persistence.indirection.IndirectSet.getDelegate(IndirectSet.java:343)
at org.eclipse.persistence.indirection.IndirectSet.size(IndirectSet.java:500)
at org.eclipse.persistence.internal.queries.CollectionContainerPolicy.sizeFor(CollectionContainerPolicy.java:177)
at org.eclipse.persistence.mappings.CollectionMapping.mergeIntoObject(CollectionMapping.java:1395)
at org.eclipse.persistence.internal.descriptors.ObjectBuilder.mergeIntoObject(ObjectBuilder.java:3254)
at org.eclipse.persistence.internal.sessions.MergeManager.mergeChangesOfCloneIntoWorkingCopy(MergeManager.java:525)
at org.eclipse.persistence.internal.sessions.MergeManager.mergeChanges(MergeManager.java:263)
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.mergeCloneWithReferences(UnitOfWorkImpl.java:3467)
at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.mergeCloneWithReferences(RepeatableWriteUnitOfWork.java:363)
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.mergeCloneWithReferences(UnitOfWorkImpl.java:3427)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.mergeInternal(EntityManagerImpl.java:452)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.merge(EntityManagerImpl.java:429)
at com.sun.enterprise.container.common.impl.EntityManagerWrapper.merge(EntityManagerWrapper.java:286)
at hr.stratusit.yachtpool.controller.SystemControllerBean.merge(SystemControllerBean.java:92)
at hr.stratusit.yachtpool.controller.MainAdminControllerBean.save(MainAdminControllerBean.java:28)
at hr.stratusit.yachtpool.controller.MainAdminTransactionControllerBean.save(MainAdminTransactionControllerBean.java:32)
at hr.stratusit.yachtpool.controller.ContactControllerBean.save(ContactControllerBean.java:309)
at hr.stratusit.yachtpool.controller.ContactControllerBean.save(ContactControllerBean.java:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052)
at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124)
at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5367)
at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:619)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:801)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571)
at org.jboss.weld.ejb.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:46)
at sun.reflect.GeneratedMethodAccessor162.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:862)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:801)
at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:371)
at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5339)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5327)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:214)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
at $Proxy481.save(Unknown Source)
at hr.stratusit.yachtpool.web.common.AdminLayout$2.menuSelected(AdminLayout.java:109)
at com.vaadin.ui.MenuBar.changeVariables(MenuBar.java:182)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariableBurst(AbstractCommunicationManager.java:1297)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariables(AbstractCommunicationManager.java:1217)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleUidlRequest(AbstractCommunicationManager.java:733)
at com.vaadin.terminal.gwt.server.CommunicationManager.handleUidlRequest(CommunicationManager.java:296)
at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:501)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1534)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:326)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:227)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:170)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.persistence.internal.security.PrivilegedAccessHelper.invokeMethod(PrivilegedAccessHelper.java:376)
at org.eclipse.persistence.internal.queries.InterfaceContainerPolicy.invokeCloneMethodOn(InterfaceContainerPolicy.java:240)
... 80 more
Caused by: java.lang.CloneNotSupportedException: java.util.Collections$UnmodifiableSet
at java.lang.Object.clone(Native Method)
... 86 moreSo my question is: is there any chance that this problem (from my perspective a BIG problem) will be solved any time soon. Or is there any other workaround that I didn’t find.
Thanks in advance
Luka