Shared database groups list get synced only after application reboot about jabref

[Siedlerchr]

Groups are part of the metadata and are synced as well when a new group is added, at least what I observed. I need to do some more testing to find out where exactly on the receiver side the sync does trigger a change/does not

[Siedlerchr]

I debugged and analyzed a bit further, and I think I narrowed down the problem. It's mainly a UI issue.

As a workaround you can create a new empty library and just switch back and forth

1. User A adds a new group to the shared database
2. User B does not see the changes -> Switches to a new empty library and back
3. Group is there

This works for adding or changing existing groups.

Code related:

jabref/src/main/java/org/jabref/gui/groups/GroupTreeViewModel.java

Lines 143 to 158 in dfe1b0c

	/**
	* Gets invoked if the user changes the active database.
	* We need to get the new group tree and update the view
	*/
	private void onActiveDatabaseChanged(Optional<BibDatabaseContext> newDatabase) {
	if (newDatabase.isPresent()) {
	GroupNodeViewModel newRoot = newDatabase
	.map(BibDatabaseContext::getMetaData)
	.flatMap(MetaData::getGroups)
	.map(root -> new GroupNodeViewModel(newDatabase.get(), stateManager, taskExecutor, root, localDragboard, preferences))
	.orElse(GroupNodeViewModel.getAllEntriesGroup(newDatabase.get(), stateManager, taskExecutor, localDragboard, preferences));
	rootGroup.setValue(newRoot);
	if (stateManager.getSelectedGroups(newDatabase.get()).isEmpty()) {
	stateManager.setSelectedGroups(newDatabase.get(), Collections.singletonList(newRoot.getGroupNode()));
	}

Groups deletion seems to be a separate issue. That does not get synced correctly in the metadata. At least from my debugging observation