Bug: Import out of memory, large number of files

[khgillen]

4.4.6 mac insight build 102, 4.4.6 VM appliance server..

I pointed the importer at a folder which contained a large number of files (many very small) and the importer ran for a while counting up the files (max reached was 48,158), went away, came back to a stacktrace dialogue.

java.lang.Exception: java.lang.OutOfMemoryError: Java heap space
	at org.openmicroscopy.shoola.agents.fsimporter.util.FileImportComponent.initComponents(FileImportComponent.java:547)
	at org.openmicroscopy.shoola.agents.fsimporter.util.FileImportComponent.<init>(FileImportComponent.java:720)
	at org.openmicroscopy.shoola.agents.fsimporter.util.FileImportComponent.insertFiles(FileImportComponent.java:660)
	at org.openmicroscopy.shoola.agents.fsimporter.util.FileImportComponent.propertyChange(FileImportComponent.java:1437)
	at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
	at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
	at java.awt.Component.firePropertyChange(Component.java:8255)
	at org.openmicroscopy.shoola.env.data.util.StatusLabel.setFiles(StatusLabel.java:225)
	at org.openmicroscopy.shoola.env.data.OmeroImageServiceImpl.importFile(OmeroImageServiceImpl.java:1302)
	at org.openmicroscopy.shoola.env.data.views.calls.ImagesImporter.importFile(ImagesImporter.java:85)
	at org.openmicroscopy.shoola.env.data.views.calls.ImagesImporter.access$000(ImagesImporter.java:54)
	at org.openmicroscopy.shoola.env.data.views.calls.ImagesImporter$1.doCall(ImagesImporter.java:110)
	at org.openmicroscopy.shoola.env.data.views.BatchCall.doStep(BatchCall.java:144)
	at org.openmicroscopy.shoola.util.concur.tasks.CompositeTask.doStep(CompositeTask.java:226)
	at org.openmicroscopy.shoola.env.data.views.CompositeBatchCall.doStep(CompositeBatchCall.java:126)
	at org.openmicroscopy.shoola.util.concur.tasks.ExecCommand.exec(ExecCommand.java:165)
	at org.openmicroscopy.shoola.util.concur.tasks.ExecCommand.run(ExecCommand.java:276)
	at org.openmicroscopy.shoola.util.concur.tasks.AsyncProcessor$Runner.run(AsyncProcessor.java:91)
	at java.lang.Thread.run(Thread.java:680)

	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.fsimporter.ImagesImporter.handleException(ImagesImporter.java:138)
	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)

[jburel]

see ​https://github.com/openmicroscopy/openmicroscopy/pull/2207

A limited has been set to 2000, this should prevent such issue.

[jamoore]

Changing to duplicate since we did successfully close it. (See #12012)