Exception in thread "AWT-EventQueue-0" java.util.ConcurrentModificationException: java.util.ConcurrentModificationException
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
	at java.base/java.util.concurrent.ForkJoinTask.getThrowableException(ForkJoinTask.java:600)
	at java.base/java.util.concurrent.ForkJoinTask.reportException(ForkJoinTask.java:678)
	at java.base/java.util.concurrent.ForkJoinTask.invoke(ForkJoinTask.java:737)
	at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateParallel(ReduceOps.java:919)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:233)
	at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
	at mediathek.filmlisten.FilmeLaden.fillHash(FilmeLaden.java:347)
	at mediathek.filmlisten.FilmeLaden.prepareHashTable(FilmeLaden.java:184)
	at mediathek.filmlisten.FilmeLaden.loadFilmlist(FilmeLaden.java:204)
	at mediathek.filmlisten.FilmeLaden.loadFilmlist(FilmeLaden.java:83)
	at mediathek.mainwindow.MediathekGui.performFilmListLoadOperation(MediathekGui.java:837)
	at mediathek.javafx.filterpanel.FilmActionPanel.lambda$setupToolBar$23(FilmActionPanel.java:291)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
Caused by: java.util.ConcurrentModificationException
	at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1660)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ReduceOps$ReduceTask.doLeaf(ReduceOps.java:952)
	at java.base/java.util.stream.ReduceOps$ReduceTask.doLeaf(ReduceOps.java:926)
	at java.base/java.util.stream.AbstractTask.compute(AbstractTask.java:327)
	at java.base/java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:746)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177)