java.nio.file.FileSystemAlreadyExistsException
  at jdk.zipfs/jdk.nio.zipfs.ZipFileSystemProvider.newFileSystem(ZipFileSystemProvider.java:102)
  at java.base/java.nio.file.FileSystems.newFileSystem(FileSystems.java:344)
  at java.base/java.nio.file.FileSystems.newFileSystem(FileSystems.java:293)
  at org.jabref.logic.citationstyle.CitationStyle.discoverCitationStyles(CitationStyle.java:147)
  at org.jabref.gui.util.BackgroundTask$1.call(BackgroundTask.java:46)
  at org.jabref.gui.util.DefaultTaskExecutor$1.call(DefaultTaskExecutor.java:122)
  at javafx.concurrent.Task$TaskCallable.call(Task.java:1425)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
  at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
  at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
  at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
  at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
  at java.base/java.lang.Thread.run(Thread.java:834)