Export: ExportAll fails with null ptr exception

[kcondon]

[2016-08-19T12:10:37.273-0400] [glassfish 4.1] [WARNING] [AS-EJB-00056] [javax.enterprise.ejb.container] [tid: _ThreadID=1648 _ThreadName=__ejb-thread-pool3] [timeMillis: 1471623037273] [l
evelValue: 900] [[
A system exception occurred during an invocation on EJB DatasetServiceBean, method: public void edu.harvard.iq.dataverse.DatasetServiceBean.exportAllAsync()]]

[2016-08-19T12:10:37.273-0400] [glassfish 4.1] [WARNING] [] [javax.enterprise.ejb.container] [tid: _ThreadID=1648 _ThreadName=__ejb-thread-pool3] [timeMillis: 1471623037273] [levelValue: 9
00] [[

javax.ejb.EJBException
at com.sun.ejb.containers.EJBContainerTransactionManager.processSystemException(EJBContainerTransactionManager.java:748)
at com.sun.ejb.containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager.java:698)
at com.sun.ejb.containers.EJBContainerTransactionManager.postInvokeTx(EJBContainerTransactionManager.java:503)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4566)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2074)
at com.sun.ejb.containers.EjbAsyncTask.call(EjbAsyncTask.java:114)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
at edu.harvard.iq.dataverse.DatasetServiceBean.exportAllDatasets(DatasetServiceBean.java:821)
at edu.harvard.iq.dataverse.DatasetServiceBean.exportAllAsync(DatasetServiceBean.java:771)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1081)
at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1153)
at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4786)
at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:656)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:608)
at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:73)
at org.jboss.weld.ejb.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:52)
at sun.reflect.GeneratedMethodAccessor89.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:608)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doCall(SystemInterceptorProxy.java:163)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:140)
at sun.reflect.GeneratedMethodAccessor90.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369)
at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4758)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4746)
at com.sun.ejb.containers.EjbAsyncTask.call(EjbAsyncTask.java:101)
... 4 more
]]

[landreev]

OK, yeah - you saw my comment there, next to the line that was throwing a null pointer... saying it would never throw a null pointer... I got that idea from looking at the dataset.isDeaccessioned() code - that it would ensure that there is at least one released version... but yeah, it looks like it could still bomb, if the dataset only has a draft version!

[landreev]

well, no - if the dataset "only has a draft version", it should not return "isReleased() == true"...
that null pointer means there has to be some bad datasets and/or versions in the database; like datasets with no versions; or datasets with no released or deaccessioned versions, but with the non-empty publication date...
But, regardless, it's prudent to assume there could be inconsistent data in the database!

[kcondon]

This is working now. Closing.