unknown exception ""org.apache.lucene.index.IndexWriter."

[ilippert]

JabRef version

Latest development branch build (please note build date below)

Operating system

GNU / Linux

Details on version and operating system

JabRef 5.13--2024-01-09--01c3e15 Linux 6.6.11-200.fc39.x86_64 amd64 Java 21.0.1 JavaFX 20+19

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

Opening database with 9.8k entries results in this error message. no idea what is going on.

Appendix

...

Log File

java.lang.NullPointerException: Cannot invoke "org.apache.lucene.index.IndexWriter.getReader(boolean, boolean)" because "<parameter1>" is null
	at org.apache.lucene.core@9.9.1/org.apache.lucene.index.DirectoryReader.open(Unknown Source)
	at org.apache.lucene.core@9.9.1/org.apache.lucene.index.DirectoryReader.open(Unknown Source)
	at org.jabref@5.13.48/org.jabref.logic.pdf.search.PdfIndexer.initializeIndexWriterAndReader(Unknown Source)
	at org.jabref@5.13.48/org.jabref.logic.pdf.search.PdfIndexer.getIndexWriter(Unknown Source)
	at org.jabref@5.13.48/org.jabref.logic.pdf.search.PdfIndexer.getListOfFilePaths(Unknown Source)
	at org.jabref@5.13.48/org.jabref.logic.pdf.search.IndexingTaskManager.updateIndex(Unknown Source)
	at org.jabref@5.13.48/org.jabref.gui.LibraryTab.onDatabaseLoadingSucceed(Unknown Source)
	at org.jabref@5.13.48/org.jabref.gui.util.DefaultTaskExecutor.lambda$getJavaFXTask$4(Unknown Source)
	at org.jabref.merged.module@5.13.48/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source)
	at org.jabref.merged.module@5.13.48/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
	at org.jabref.merged.module@5.13.48/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
	at org.jabref.merged.module@5.13.48/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
	at org.jabref.merged.module@5.13.48/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
	at org.jabref.merged.module@5.13.48/com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source)
	at org.jabref.merged.module@5.13.48/com.sun.javafx.event.EventUtil.fireEvent(Unknown Source)
	at org.jabref.merged.module@5.13.48/javafx.event.Event.fireEvent(Unknown Source)
	at org.jabref.merged.module@5.13.48/javafx.concurrent.EventHelper.fireEvent(Unknown Source)
	at org.jabref.merged.module@5.13.48/javafx.concurrent.Task.fireEvent(Unknown Source)
	at org.jabref.merged.module@5.13.48/javafx.concurrent.Task.setState(Unknown Source)
	at org.jabref.merged.module@5.13.48/javafx.concurrent.Task$TaskCallable.lambda$call$1(Unknown Source)
	at org.jabref.merged.module@5.13.48/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Unknown Source)
	at org.jabref.merged.module@5.13.48/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(Unknown Source)
	at org.jabref.merged.module@5.13.48/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(Unknown Source)
	at org.jabref.merged.module@5.13.48/com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
	at org.jabref.merged.module@5.13.48/com.sun.glass.ui.gtk.GtkApplication.lambda$runLoop$11(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)

###

[Siedlerchr]

Does this still occur with the latest dev version?

[ilippert]

Did not occur in

JabRef 5.13--2024-01-27--0add5e3
Linux 6.6.13-200.fc39.x86_64 amd64
Java 21.0.1
JavaFX 21.0.2+5