BUG: Error connected to group

[pwalczysko]

When testing the import of test_images_good/flex/ into Screens folder
User-4:
Go to Screens harmonica tab.
Put "zpetr test group change" out of display.
Put some other group to display, expand it, refresh.
Start import.
Choose test_images_good/flex/.
Press >
In Import Location window, choose "zpetr test group change"
The Screens choice is greyed out.
Choose back any other group (e.g. private-1) - the Screen choice is okay.
Imported the /flex/ into the "zpetr test group change".
The Import reported success (green tick), but the importer line was saying "Cancel" (see screenshot).
Cancelled the importer window.
Go to the Screen harmonica in Data Manager.
Put the "zpetr test group change" to display.
Click on the "zpetr test group change" group to expand.
Error appears.
See attached.
Cancelled the error.
Cllcked onto the group in the tree. Expanded and collapsed the group.
The "ScreenData?." error appeared (shown below) alternately with the "GroupData?" error which is attached as .txt.
After some expanding and collapsing, intermittently "Connection lost" appeared, then "Connection destroyed" and insight closed.

java.lang.Exception: org.openmicroscopy.shoola.env.data.DSAccessException: Cannot access data. 
Cannot load hierarchy for class pojos.ScreenData.
	at org.openmicroscopy.shoola.env.data.OMEROGateway.handleException(OMEROGateway.java:891)
	at org.openmicroscopy.shoola.env.data.OMEROGateway.loadContainerHierarchy(OMEROGateway.java:2649)
	at org.openmicroscopy.shoola.env.data.OmeroDataServiceImpl.loadContainerHierarchy(OmeroDataServiceImpl.java:221)
	at org.openmicroscopy.shoola.env.data.views.calls.DMLoader$1.doCall(DMLoader.java:91)
	at org.openmicroscopy.shoola.env.data.views.BatchCall.doStep(BatchCall.java:144)
	at org.openmicroscopy.shoola.util.concur.tasks.CompositeTask.doStep(CompositeTask.java:226)
	at org.openmicroscopy.shoola.env.data.views.CompositeBatchCall.doStep(CompositeBatchCall.java:126)
	at org.openmicroscopy.shoola.util.concur.tasks.ExecCommand.exec(ExecCommand.java:165)
	at org.openmicroscopy.shoola.util.concur.tasks.ExecCommand.run(ExecCommand.java:276)
	at org.openmicroscopy.shoola.util.concur.tasks.AsyncProcessor$Runner.run(AsyncProcessor.java:91)
	at java.lang.Thread.run(Thread.java:680)
Caused by: Ice.CommunicatorDestroyedException
	at IceInternal.Instance.objectAdapterFactory(Instance.java:122)
	at Ice.ObjectPrxHelperBase.createDelegate(ObjectPrxHelperBase.java:997)
	at Ice.ObjectPrxHelperBase.__getDelegate(ObjectPrxHelperBase.java:946)
	at omero.api.IContainerPrxHelper.loadContainerHierarchy(IContainerPrxHelper.java:736)
	at omero.api.IContainerPrxHelper.loadContainerHierarchy(IContainerPrxHelper.java:710)
	at org.openmicroscopy.shoola.env.data.OMEROGateway.loadContainerHierarchy(OMEROGateway.java:2645)
	... 9 more

	at org.openmicroscopy.shoola.env.ui.UserNotifierImpl.showErrorDialog(UserNotifierImpl.java:189)
	at org.openmicroscopy.shoola.env.ui.UserNotifierImpl.notifyError(UserNotifierImpl.java:287)
	at org.openmicroscopy.shoola.env.ui.UserNotifierImpl.notifyError(UserNotifierImpl.java:257)
	at org.openmicroscopy.shoola.agents.treeviewer.DataBrowserLoader.handleException(DataBrowserLoader.java:148)
	at org.openmicroscopy.shoola.env.data.events.DSCallAdapter.eventFired(DSCallAdapter.java:84)
	at org.openmicroscopy.shoola.env.data.views.BatchCallMonitor$1.run(BatchCallMonitor.java:124)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:702)
	at java.awt.EventQueue.access$400(EventQueue.java:82)
	at java.awt.EventQueue$2.run(EventQueue.java:663)
	at java.awt.EventQueue$2.run(EventQueue.java:661)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:672)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:205)
	at java.awt.Dialog$1.run(Dialog.java:1044)
	at java.awt.Dialog$3.run(Dialog.java:1096)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.awt.Dialog.show(Dialog.java:1094)
	at java.awt.Component.show(Component.java:1591)
	at java.awt.Component.setVisible(Component.java:1543)
	at java.awt.Window.setVisible(Window.java:843)
	at java.awt.Dialog.setVisible(Dialog.java:984)
	at org.openmicroscopy.shoola.util.ui.UIUtilities.centerAndShow(UIUtilities.java:557)
	at org.openmicroscopy.shoola.env.ui.UserNotifierImpl.showErrorDialog(UserNotifierImpl.java:197)
	at org.openmicroscopy.shoola.env.ui.UserNotifierImpl.notifyError(UserNotifierImpl.java:287)
	at org.openmicroscopy.shoola.env.ui.UserNotifierImpl.notifyError(UserNotifierImpl.java:257)
	at org.openmicroscopy.shoola.agents.metadata.MetadataLoader.handleException(MetadataLoader.java:169)
	at org.openmicroscopy.shoola.env.data.events.DSCallAdapter.eventFired(DSCallAdapter.java:84)
	at org.openmicroscopy.shoola.env.data.views.BatchCallMonitor$1.run(BatchCallMonitor.java:124)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:702)
	at java.awt.EventQueue.access$400(EventQueue.java:82)
	at java.awt.EventQueue$2.run(EventQueue.java:663)
	at java.awt.EventQueue$2.run(EventQueue.java:661)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:672)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)