4.0 Group view: freeze when organizing groups with drag&drop

[JonGolcha]

JabRef version 4.0 on Mac OS Sierra 10.12.6

Steps to reproduce:

1. do a few drag&drops to reorganize groups
2. at some point (often after only 1 or 2 group moving) nothing happens when reorganizing groups.
3. after a few unworking tries, application freezes

[lenhard]

It seems that Mac OS Sierra and JavaFX do not go together nicely.

Please make sure that your Java8/JavaFX runtimes are up-to-date.

Also, could you have a look at #3227 and try out the hostname solution described there?

[JonGolcha]

• Installing the latest version of [Java8, update 151] https://www.java.com/en/download/mac_download.jsp) doesn't solve the group drag&drop issue.
• Installing Java SE Runtime Environment 9
  leads to Jabref not loading at all (only Jabref name displayed in the menu bar, I suppose this version of Java is not currently supported).
• I also tried out the hostname solution, in vain.

[Siedlerchr]

@JonGolcha Java 9 is not supported yet.
This seems to a real Mac only problem. I can not reproduce this under Windows. It could help if you try starting JabRef from command line via java -jar JabRef.jar and see if there is any error logged when a freeze happens.

And also please try the latest dev version: http://builds.jabref.org/master/

[lenhard]

Any success with the newest development version?

[JonGolcha]

Sorry for long delay replying.
Same non-functionning of group drag&drop with the last development version (JabRef-4.1-dev--snapshot--2017-11-10--master--dba8db5db).

Also I tried starting JabRef from command line via java -jar JabRef.jar to see log errors, but couldn't run it:

sudo java -jar JabRef-4.1-dev--snapshot--2017-11-10--master--dba8db5db.jar
12:22:13.610 [AWT-EventQueue-0] ERROR org.jabref.FallbackExceptionHandler - Uncaught exception occurred in Thread[AWT-EventQueue-0,6,main]
java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException
at org.jabref.logic.importer.ImportFormatReader.resetImportFormats(ImportFormatReader.java:55) ~[JabRef-4.1-dev--snapshot--2017-11-10--master--dba8db5db.jar:?]
at org.jabref.JabRefMain.start(JabRefMain.java:97) ~[JabRef-4.1-dev--snapshot--2017-11-10--master--dba8db5db.jar:?]
at org.jabref.JabRefMain.lambda$start$0(JabRefMain.java:53) ~[JabRef-4.1-dev--snapshot--2017-11-10--master--dba8db5db.jar:?]
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313) ~[?:?]
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:764) ~[?:?]
at java.awt.EventQueue.access$500(EventQueue.java:97) ~[?:?]
at java.awt.EventQueue$3.run(EventQueue.java:717) ~[?:?]
at java.awt.EventQueue$3.run(EventQueue.java:711) ~[?:?]
at java.security.AccessController.doPrivileged(Native Method) ~[?:?]
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:89) ~[?:?]
at java.awt.EventQueue.dispatchEvent(EventQueue.java:734) ~[?:?]
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:199) ~[?:?]
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) ~[?:?]
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113) ~[?:?]
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109) ~[?:?]
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) ~[?:?]
at java.awt.EventDispatchThread.run(EventDispatchThread.java:90) ~[?:?]
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.JAXBException
at jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582) ~[?:?]
at jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185) ~[?:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:496) ~[?:?]
... 17 more

[Siedlerchr]

You are still using java 9. You have to downgrade to Java 8

[lenhard]

Nothing has happened here in a while and it seems to boil down to a wrong Java version. Hence, I am closing it now.

In case the problem also appear with a recent Java 8 JRE, feel free to re-open.

[tegedo]

Hi, I had the same problem with Java and JabRef, fiddled with this stuff for hours with different versions of Java, I am using Centos 7.

The problem was finally solved by changing the UI to "javax.swing.plaf.metal.MetalLookAndFeel"

Hope that helps

[lenhard]

So it seems to be related to the look-and-feels. We have no action points here, so I am closing this.