filename validation ConstraintViolationException

[donsizemore]

With dv-webloader, one may drop a folder containing thousands of files and begin upload. dv-webloader will upload them. The user sees:

Then, in the javascript console, things go splat:

Payara's server.log sez

Constraint violation found in FileMetadata. File Name cannot contain any of the following characters:  / : * ? " < > | ; # . The invalid value is "filename".

  javax.ejb.EJBException: One or more Bean Validation constraints were violated while executing Automatic Bean Validation on callback event: prePersist for class: edu.harvard.iq.dataverse.FileMetadata. Please refer to the embedded constr
aint violations for details.
        at com.sun.ejb.containers.EJBContainerTransactionManager.processSystemException(EJBContainerTransactionManager.java:723)
        at com.sun.ejb.containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager.java:652)
        at com.sun.ejb.containers.EJBContainerTransactionManager.postInvokeTx(EJBContainerTransactionManager.java:482)
        at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4601)
        at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2134)
        at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2104)
        at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:220)
        at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:90)
        at com.sun.proxy.$Proxy377.submit(Unknown Source)
        at edu.harvard.iq.dataverse.__EJB31_Generated__EjbDataverseEngineInner__Intf____Bean__.submit(Unknown Source)
        at edu.harvard.iq.dataverse.EjbDataverseEngine.submit(EjbDataverseEngine.java:272)
        at jdk.internal.reflect.GeneratedMethodAccessor1337.invoke(Unknown Source)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:588)
        at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:408)
        at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4835)
        at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:665)
        at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:834)
        at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:615)
        at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doCall(SystemInterceptorProxy.java:163)
        at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:140)
        at jdk.internal.reflect.GeneratedMethodAccessor150.invoke(Unknown Source)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:888)
        at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:833)
        at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:615)
        at org.jboss.weld.module.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:72)
        at org.jboss.weld.module.ejb.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:52)
        at jdk.internal.reflect.GeneratedMethodAccessor144.invoke(Unknown Source)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:888)
        at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:833)
        at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:375)
        at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4807)
        at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4795)
        at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:212)
        at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:90)
        at com.sun.proxy.$Proxy405.submit(Unknown Source)
        at edu.harvard.iq.dataverse.__EJB31_Generated__EjbDataverseEngine__Intf____Bean__.submit(Unknown Source)
        at edu.harvard.iq.dataverse.datasetutility.AddReplaceFileHelper.addFiles(AddReplaceFileHelper.java:2148)
        at edu.harvard.iq.dataverse.api.Datasets.addFilesToDataset(Datasets.java:3467)
Caused by: javax.validation.ConstraintViolationException: One or more Bean Validation constraints were violated while executing Automatic Bean Validation on callback event: prePersist for class: edu.harvard.iq.dataverse.FileMetadata. Please refer to the embedded constraint violations for details.
        at org.eclipse.persistence.internal.jpa.metadata.listeners.BeanValidationListener.validateOnCallbackEvent(BeanValidationListener.java:124)
        at org.eclipse.persistence.internal.jpa.metadata.listeners.BeanValidationListener.prePersist(BeanValidationListener.java:86)
        at org.eclipse.persistence.descriptors.DescriptorEventManager.notifyListener(DescriptorEventManager.java:746)
        at org.eclipse.persistence.descriptors.DescriptorEventManager.notifyEJB30Listeners(DescriptorEventManager.java:689)
        at org.eclipse.persistence.descriptors.DescriptorEventManager.executeEvent(DescriptorEventManager.java:233)
        at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectClone(UnitOfWorkImpl.java:4468)
        at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.cloneAndRegisterNewObject(RepeatableWriteUnitOfWork.java:613)
        at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalRegisterObject(UnitOfWorkImpl.java:3045)
        at org.eclipse.persistence.internal.sessions.MergeManager.registerObjectForMergeCloneIntoWorkingCopy(MergeManager.java:1102)
        at org.eclipse.persistence.internal.sessions.MergeManager.mergeChangesOfCloneIntoWorkingCopy(MergeManager.java:575)
        at org.eclipse.persistence.internal.sessions.MergeManager.mergeChanges(MergeManager.java:324)
        at org.eclipse.persistence.mappings.CollectionMapping.mergeIntoObject(CollectionMapping.java:1650)
        at org.eclipse.persistence.internal.descriptors.ObjectBuilder.mergeIntoObject(ObjectBuilder.java:4202)
        at org.eclipse.persistence.internal.sessions.MergeManager.mergeChangesOfCloneIntoWorkingCopy(MergeManager.java:612)
        at org.eclipse.persistence.internal.sessions.MergeManager.mergeChanges(MergeManager.java:324)
        at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.mergeCloneWithReferences(UnitOfWorkImpl.java:3637)
        at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.mergeCloneWithReferences(RepeatableWriteUnitOfWork.java:389)
        at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.mergeCloneWithReferences(UnitOfWorkImpl.java:3597)
        at org.eclipse.persistence.internal.jpa.EntityManagerImpl.mergeInternal(EntityManagerImpl.java:648)
        at org.eclipse.persistence.internal.jpa.EntityManagerImpl.merge(EntityManagerImpl.java:625)
        at com.sun.enterprise.container.common.impl.EntityManagerWrapper.merge(EntityManagerWrapper.java:307)
        at edu.harvard.iq.dataverse.engine.command.impl.UpdateDatasetVersionCommand.execute(UpdateDatasetVersionCommand.java:129)
        at edu.harvard.iq.dataverse.engine.command.impl.UpdateDatasetVersionCommand.execute(UpdateDatasetVersionCommand.java:30)
        at edu.harvard.iq.dataverse.EjbDataverseEngineInner.submit(EjbDataverseEngineInner.java:36)

It would be great if dv-webloader could either percolate the user-friendly error back to the dv-webloader UI, or perhaps pre-emptively search for such characters before attempting to upload files?