I have a late-2016 MacBook Pro (without Touchbar) - MacOS High Sierra 10.13.2 - Java 9

Since one or two weeks, when I launch a Java application (NetBeans, a JavaFX app, Eclipse... etc) my MacOS docks freezes for at least 5 seconds before unfreezing and showing the application in the dock (and launching it). I can't switch between applications. It does the same thing when I try to compile applications from my development environment. It's unusable for now...

Do you have any solutions?

EDIT : Tried to uninstall Java, still the same thing. When I launch the Java installer it does the same problem : dock/mac freeze for 5 seconds... EDIT 2 : Tried to launch a console program : no problem. This is only when I launch a GUI Application.

  • Resolved by removing my network share from my dock. – OverSpeed301 Feb 15 '18 at 9:25
  • Maybe you could explain your solution? Or post it as a solution, I gladly upvote it. I have the same problem. – Steffen Nieuwenhoven Feb 18 '19 at 10:29

When I launched these Java programs (why only Java applications I honestly don't know...) I remember I inserted a network sharing shortcut in the Mac OS dock.

I think MacOS as a side effect tried to analyse this folder (which is in fact a network storage) while it was in the dock ; which causes all these lags since the network shared folder is not all the time connected (when I'm not @ home, or even if I am at home and the NAS is sleeping).

TL;DR If you have any kind of network shared / FTP folder as a shortcut in your Mac OS dock you may try to remove it to see if the lags are disappearing.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .