Uncaught Exception

[notuntoward]

Frequently, I get a popup window telling me about an uncaught exception. Screenshot attached, as well as the contents of the popup detailed text box.

Details from popup
java.lang.IllegalStateException: Task must only be used from the FX Application Thread
at org.jabref.merged.module/javafx.concurrent.Task.checkThread(Unknown Source)
at org.jabref.merged.module/javafx.concurrent.Task.isRunning(Unknown Source)
at org.jabref.merged.module/org.controlsfx.control.textfield.AutoCompletionBinding.onUserInputChanged(Unknown Source)
at org.jabref.merged.module/org.controlsfx.control.textfield.AutoCompletionBinding.setUserInput(Unknown Source)
at org.jabref/org.jabref.gui.autocompleter.AutoCompletionTextInputBinding.setUserInputText(Unknown Source)
at org.jabref/org.jabref.gui.autocompleter.AutoCompletionTextInputBinding.lambda$new$0(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.binding.ExpressionHelper$Generic.fireValueChangedEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(Unknown Source)
at org.jabref.merged.module/javafx.scene.control.TextInputControl$TextProperty.fireValueChangedEvent(Unknown Source)
at org.jabref.merged.module/javafx.scene.control.TextInputControl$TextProperty.markInvalid(Unknown Source)
at org.jabref.merged.module/javafx.scene.control.TextInputControl$TextProperty.controlContentHasChanged(Unknown Source)
at org.jabref.merged.module/javafx.scene.control.TextInputControl.lambda$new$0(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.binding.ExpressionHelper$SingleInvalidation.fireValueChangedEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(Unknown Source)
at org.jabref.merged.module/javafx.scene.control.TextArea$TextAreaContent.insert(Unknown Source)
at org.jabref.merged.module/javafx.scene.control.TextInputControl.replaceText(Unknown Source)
at org.jabref.merged.module/javafx.scene.control.TextInputControl.filterAndSet(Unknown Source)
at org.jabref.merged.module/javafx.scene.control.TextInputControl$TextProperty.doSet(Unknown Source)
at org.jabref.merged.module/javafx.scene.control.TextInputControl$TextProperty.set(Unknown Source)
at org.jabref.merged.module/javafx.scene.control.TextInputControl$TextProperty.set(Unknown Source)
at org.jabref.merged.module/javafx.beans.property.StringProperty.setValue(Unknown Source)
at org.jabref.merged.module/javafx.beans.property.StringProperty.setValue(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.binding.BidirectionalBinding$TypedGenericBidirectionalBinding.changed(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.binding.ExpressionHelper$Generic.fireValueChangedEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(Unknown Source)
at org.jabref.merged.module/javafx.beans.property.StringPropertyBase.fireValueChangedEvent(Unknown Source)
at org.jabref.merged.module/javafx.beans.property.StringPropertyBase.markInvalid(Unknown Source)
at org.jabref.merged.module/javafx.beans.property.StringPropertyBase.set(Unknown Source)
at org.jabref.merged.module/javafx.beans.property.StringPropertyBase.set(Unknown Source)
at org.jabref.merged.module/javafx.beans.property.StringProperty.setValue(Unknown Source)
at org.jabref.merged.module/javafx.beans.property.StringProperty.setValue(Unknown Source)
at org.jabref/org.jabref.gui.util.BindingsHelper$BidirectionalBinding.updateLocked(Unknown Source)
at org.jabref/org.jabref.gui.util.BindingsHelper$BidirectionalBinding.changedB(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.binding.ExpressionHelper$SingleChange.fireValueChangedEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(Unknown Source)
at org.jabref.merged.module/javafx.beans.binding.ObjectBinding.invalidate(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.binding.BindingHelperObserver.invalidated(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.collections.MapListenerHelper$Generic.fireValueChangedEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.collections.MapListenerHelper.fireValueChangedEvent(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.collections.ObservableMapWrapper.callObservers(Unknown Source)
at org.jabref.merged.module/com.sun.javafx.collections.ObservableMapWrapper.put(Unknown Source)
at org.jabref/org.jabref.model.entry.BibEntry.setField(Unknown Source)
at org.jabref/org.jabref.model.cleanup.FieldFormatterCleanup.cleanupSingleField(Unknown Source)
at org.jabref/org.jabref.model.cleanup.FieldFormatterCleanup.cleanupAllFields(Unknown Source)
at org.jabref/org.jabref.model.cleanup.FieldFormatterCleanup.cleanup(Unknown Source)
at org.jabref/org.jabref.logic.exporter.BibDatabaseWriter.applySaveActions(Unknown Source)
at org.jabref/org.jabref.logic.exporter.BibDatabaseWriter.savePartOfDatabase(Unknown Source)
at org.jabref/org.jabref.logic.exporter.BibDatabaseWriter.saveDatabase(Unknown Source)
at org.jabref/org.jabref.logic.autosaveandbackup.BackupManager.performBackup(Unknown Source)
at java.base/java.util.Optional.ifPresent(Unknown Source)
at org.jabref/org.jabref.logic.autosaveandbackup.BackupManager.lambda$startBackupTask$2(Unknown Source)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)

JabRef Version
JabRef 5.0--2020-03-06--2e6f433
Windows 10 10.0 amd64
Java 13.0.2

[koppor]

Duplicate of #6104?

[Siedlerchr]

The core problem is that the
org.jabref/org.jabref.model.entry.BibEntry.setField(Unknown Source)
is called from a background thread, but actially must be called from a UI thread.
The problem is that this is called from the save actions which trigger a cleanup operation which then calls the setField method and then the UI bindings get triggered

[Siedlerchr]

Refs #6102

[tobiasdiez]

This should be fixed in the latest development version. Could you please check the build from http://builds.jabref.org/master/. Thanks! Please remember to make a backup of your library before trying-out this version.