UnsupportedOperationException when clicking “Move panel up” in Groups panel

[iYashMaurya]

JabRef version

5.15 (latest release)

Operating system

macOS

Details on version and operating system

macOs 26.2

Checked with the latest development build (copy version output from About dialog)

• I made a backup of my libraries before testing the latest development version.
• I have tested the latest development version and the problem persists

Steps to reproduce the behaviour

1. Start JabRef from source (development build).
2. Open JabRef normally.
3. Go to the Groups panel on the left sidebar.
4. Select any group (for example, All entries).
5. Click the ⬆️ Move panel up button in the Groups panel toolbar.
6. Observe the exception dialog.

Appendix

...

Log File

java.lang.UnsupportedOperationException
	at java.base/java.util.ImmutableCollections.uoe(ImmutableCollections.java:159)
	at java.base/java.util.ImmutableCollections$AbstractImmutableMap.put(ImmutableCollections.java:1318)
	at javafx.base@25.0.2/com.sun.javafx.collections.ObservableMapWrapper.put(ObservableMapWrapper.java:172)
	at javafx.base@25.0.2/com.sun.javafx.collections.ObservableMapWrapper.put(ObservableMapWrapper.java:172)
	at javafx.base@25.0.2/com.sun.javafx.collections.ObservableMapWrapper.putAll(ObservableMapWrapper.java:192)
	at org.jabref/org.jabref.gui.frame.SidePanePreferences.setPreferredPositions(SidePanePreferences.java:55)
	at org.jabref/org.jabref.gui.sidepane.SidePaneViewModel.updatePreferredPositions(SidePaneViewModel.java:118)
	at org.jabref/org.jabref.gui.sidepane.SidePaneViewModel.moveDown(SidePaneViewModel.java:142)
	at org.jabref/org.jabref.gui.sidepane.SidePaneViewModel$MoveDownAction.execute(SidePaneViewModel.java:209)
	at org.jabref/org.jabref.gui.sidepane.SidePaneComponent.lambda$createHeaderView$2(SidePaneComponent.java:57)
	at javafx.base@25.0.2/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
	at javafx.base@25.0.2/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:232)
	at javafx.base@25.0.2/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:189)
	at javafx.base@25.0.2/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
	at javafx.base@25.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
	at javafx.base@25.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25.0.2/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
	at javafx.base@25.0.2/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
	at javafx.base@25.0.2/javafx.event.Event.fireEvent(Event.java:199)
	at javafx.graphics@25.0.2/javafx.scene.Node.fireEvent(Node.java:9067)
	at javafx.controls@25.0.2/javafx.scene.control.Button.fire(Button.java:203)
	at javafx.controls@25.0.2/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:207)
	at javafx.controls@25.0.2/com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
	at javafx.base@25.0.2/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:247)
	at javafx.base@25.0.2/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
	at javafx.base@25.0.2/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:232)
	at javafx.base@25.0.2/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:189)
	at javafx.base@25.0.2/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
	at javafx.base@25.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
	at javafx.base@25.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25.0.2/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
	at javafx.base@25.0.2/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
	at javafx.base@25.0.2/javafx.event.Event.fireEvent(Event.java:199)
	at javafx.graphics@25.0.2/javafx.scene.Scene$MouseHandler.process(Scene.java:4061)
	at javafx.graphics@25.0.2/javafx.scene.Scene.processMouseEvent(Scene.java:1947)
	at javafx.graphics@25.0.2/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2784)
	at javafx.graphics@25.0.2/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.get(GlassViewEventHandler.java:353)
	at javafx.graphics@25.0.2/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.get(GlassViewEventHandler.java:255)
	at javafx.graphics@25.0.2/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:424)
	at javafx.graphics@25.0.2/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:387)
	at javafx.graphics@25.0.2/com.sun.glass.ui.View.handleMouseEvent(View.java:573)
	at javafx.graphics@25.0.2/com.sun.glass.ui.View.notifyMouse(View.java:975)
	at javafx.graphics@25.0.2/com.sun.glass.ui.mac.MacView.notifyMouse(MacView.java:131)

[pluto-han]

/assign-me

[jabref-machine]

Thank you for your continued work in JabRef. At this point, you probably already know the basics and the important links. If not, our contributing guidelines is the place you should go to.

At this point in time, you raised 5 pull request(s) of which 60% (3/5) have been merged.