First of all thanks for this detailed explanation. I think i know what the mistake could be. When I builded saros i only got 3 files saros.core saros.eclipse and saros.whiteboard
But those are the important ones. The fourth one for me was the STF, our testing framework, which is not important for the main plugin functionality whatsoever. So me mentioning that there were 4 jars was probably more confusing than helpful. Sorry.
Just using the build jars should work. modifying an old bundled plugin should not be necessary.
You could also try a clean eclipse install and see if it works there. That would remove the possibility of interactions with previous installations.
This time it worked with the three files but i still get that nullpointer exception becouse of No such field saros.negotiation.ProjectNegotiationData.additionalProjectOptions
@ChickenCoderYt I have now also tried it on Windows 10 using a build created on Windows, so I really can't recreate your issue. Have you tried using a clean Eclipse installation (just downloading a fresh eclipse zip, unpacking it and adding the dropins)?
Uploading files to Gitter doesn't work on my system, but I can post a zipped version of the drop in jars and the server jar that work on my system later this evening.
Another question appeared
Is it normal that i can invite someone only once and after that i have to restart the server becouse
ERROR 17:16:52,647 [main] (InviteCommand.java:47) Error inviting users
java.lang.IllegalArgumentException: JID is not resource qualified: DeinNutzerName@saros-con.imp.fu-berlin.de
Could you provide the Saros log? It can be found in the workspace of the project:
Also, are you using any other IDE plugins (especially ones adding support for other programming languages; those have caused trouble in the past) in combination with Saros?