LO/OO bibliography error when using citations with non-Latin charcters

[subhramit]

JabRef version

6.0-alpha2

Operating system

Windows

Details on version and operating system

Windows 11

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
2. Start a LibreOffice Writer document instance
3. Connect to the document instance from JabRef's OO/LO panel
4. Open a new library
5. Add the following entries to your library:

@Article{Ты2025,
  author = {Ты},
  title  = {You},
  year   = {2025},
}

@Article{Я2025,
  author = {Я},
  title  = {I},
  year   = {2025},
}

6. Select a CSL style from the "Select Style" dialog of the OO/LO panel
7. Cite any of the above entries
8. Click the "Make/Sync" bibliography button from the OO/LO panel (not needed if OO Panel->Settings->Automatically sync bibliography is enabled)

You will observe the following exception (see appendix) along with the error dialog:

No cited entries found in the document.

And log:

2025-06-10 22:32:55 [JavaFX Application Thread] org.jabref.logic.openoffice.ReferenceMark.parse()
WARN: CSLReferenceMark: name=JABREF_Ты2025 CID_1 e2b1z2jv does not match pattern. Assuming random values

Cause

Non-Latin characters are not recognized valid in the "reference marks" format used for LO/OO in JabRef

Hints to solve

Adapt the regex in:

jabref/jablib/src/main/java/org/jabref/logic/openoffice/ReferenceMark.java

Lines 18 to 19 in 1ba35d2

	private static final Pattern REFERENCE_MARK_FORMAT = Pattern.compile("^(JABREF_[\\w-:./]+ CID_\\d+(?:, JABREF_[\\w-:./]+ CID_\\d+)*) (\\w+)$");
	private static final Pattern ENTRY_PATTERN = Pattern.compile("JABREF_([\\w-:./]+) CID_(\\d+)");

Pre-requisite context for people not familiar with this aspect of JabRef:

OO/LO integration: https://docs.jabref.org/cite/openofficeintegration
CSL styles - citing and generating bibliographies: https://blog.jabref.org/2024/08/26/GSoC-CSL/
"Reference marks" in LibreOffice: https://devdocs.jabref.org/code-howtos/openoffice/overview.html (may be slightly outdated but conceptually valid).

Test for completion:

Screen recording of bibliography being successfully generated in the document from the entries mentioned.

Appendix

...

Log File

com.sun.star.uno.RuntimeException: Nothing to unlock
	at org.libreoffice.uno/com.sun.star.lib.uno.environments.remote.Job.remoteUnoRequestRaisedException(Job.java:158)
	at org.libreoffice.uno/com.sun.star.lib.uno.environments.remote.Job.execute(Job.java:122)
	at org.libreoffice.uno/com.sun.star.lib.uno.environments.remote.JobQueue.enter(JobQueue.java:312)
	at org.libreoffice.uno/com.sun.star.lib.uno.environments.remote.JobQueue.enter(JobQueue.java:281)
	at org.libreoffice.uno/com.sun.star.lib.uno.environments.remote.JavaThreadPool.enter(JavaThreadPool.java:81)
	at org.libreoffice.uno/com.sun.star.lib.uno.bridges.java_remote.java_remote_bridge.sendRequest(java_remote_bridge.java:619)
	at org.libreoffice.uno/com.sun.star.lib.uno.bridges.java_remote.ProxyFactory$Handler.request(ProxyFactory.java:145)
	at org.libreoffice.uno/com.sun.star.lib.uno.bridges.java_remote.ProxyFactory$Handler.invoke(ProxyFactory.java:129)
	at jdk.proxy2/jdk.proxy2.$Proxy24.unlockControllers(Unknown Source)
	at org.jabref/org.jabref.gui.openoffice.OOBibBase.guiActionInsertEntry(OOBibBase.java:619)
	at org.jabref/org.jabref.gui.openoffice.OpenOfficePanel.pushEntries(OpenOfficePanel.java:582)
	at org.jabref/org.jabref.gui.openoffice.OpenOfficePanel.lambda$initPanel$5(OpenOfficePanel.java:259)
	at javafx.base@25-ea/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
	at javafx.base@25-ea/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:232)
	at javafx.base@25-ea/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:189)
	at javafx.base@25-ea/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
	at javafx.base@25-ea/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
	at javafx.base@25-ea/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25-ea/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25-ea/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25-ea/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25-ea/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25-ea/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25-ea/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25-ea/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25-ea/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25-ea/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
	at javafx.base@25-ea/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
	at javafx.base@25-ea/javafx.event.Event.fireEvent(Event.java:199)
	at javafx.graphics@25-ea/javafx.scene.Node.fireEvent(Node.java:9005)
	at javafx.controls@25-ea/javafx.scene.control.Button.fire(Button.java:203)
	at javafx.controls@25-ea/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:207)
	at javafx.controls@25-ea/com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
	at javafx.base@25-ea/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:247)
	at javafx.base@25-ea/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
	at javafx.base@25-ea/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:232)
	at javafx.base@25-ea/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:189)
	at javafx.base@25-ea/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
	at javafx.base@25-ea/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
	at javafx.base@25-ea/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25-ea/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25-ea/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25-ea/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25-ea/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25-ea/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25-ea/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25-ea/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@25-ea/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@25-ea/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
	at javafx.base@25-ea/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
	at javafx.base@25-ea/javafx.event.Event.fireEvent(Event.java:199)
	at javafx.graphics@25-ea/javafx.scene.Scene$MouseHandler.process(Scene.java:4005)
	at javafx.graphics@25-ea/javafx.scene.Scene.processMouseEvent(Scene.java:1934)
	at javafx.graphics@25-ea/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2763)
	at javafx.graphics@25-ea/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.get(GlassViewEventHandler.java:352)
	at javafx.graphics@25-ea/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.get(GlassViewEventHandler.java:254)
	at javafx.graphics@25-ea/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:424)
	at javafx.graphics@25-ea/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:386)
	at javafx.graphics@25-ea/com.sun.glass.ui.View.handleMouseEvent(View.java:560)
	at javafx.graphics@25-ea/com.sun.glass.ui.View.notifyMouse(View.java:946)
	at javafx.graphics@25-ea/com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
	at javafx.graphics@25-ea/com.sun.glass.ui.gtk.GtkApplication.lambda$runLoop$1(GtkApplication.java:240)
	at java.base/java.lang.Thread.run(Thread.java:1447)

[subhramit]

Note: After adapting the regex, in case LibreOffice doesn't support reference marks with non Latin characters, please report here with the fix you tried, error faced, etc..

[RUSHILPATEL33]

Hi! i want to work on this issue as my first Java contribution. I’ll update the regex to support Unicode characters and test it using the entries you mentioned. Thanks!

[subhramit]

Hi! i want to work on this issue as my first Java contribution. I’ll update the regex to support Unicode characters and test it using the entries you mentioned. Thanks!

Hi, welcome. Please go through our CONTRIBUTING.md.
Use the /assign-me action to get assigned to the issue.

[RUSHILPATEL33]

/assign-me

[github-actions]

👋 Hey @RUSHILPATEL33, thank you for your interest in this issue! 🎉

We're excited to have you on board. Start by exploring our Contributing guidelines, and don't forget to check out our workspace setup guidelines to get started smoothly.

For questions on JabRef functionality and the code base, you can consult the JabRef Guru or ask on our Gitter chat.

In case you encounter failing tests during development, please check our developer FAQs!

Having any questions or issues? Feel free to ask here on GitHub. Need help setting up your local workspace? Join the conversation on JabRef's Gitter chat. And don't hesitate to open a (draft) pull request early on to show the direction it is heading towards. This way, you will receive valuable feedback.

Happy coding! 🚀