Am I the only one having a Really rough transition?

[alpinejohn]

Hallo flan

My problems have been two fold, (a) Java 11, (b) running U-M 18.04 in a VM on top of W7 (not my choice).
(a) I use a number of JAVA -based programs and they crashed upon opening until I was able to work something out - see link.

Ubuntu-Mate 18-04 - some Java dependant programs crash - a solution

Hallo I use two Java dependant programs, Freeplane and ProjectLibre. Having updated to Ubuntu-Mate 18.04 I found that I could install Freeplane, but that it crashed when launched. If a program crashes when being launched one of the best things to do is to start the program from the terminal, as you will then usually see the reason for the crash. Having launched Freeplane from the terminal a lot of comment was produced which included the following: Exception in thread “main” java.awt.AWTError…

(b) really slow, as if there was only 0.5 cpu available for the VM (cpu = 2). I'm still trying to understand that one.
So, in answer to your question, no you are not alone, although mileage varies.

Edit (26.09.2018)
(b) Running my 27 inch screen, the UM guest on the W7 host powered by 5 year old intel on-board graphics was struggling. I switched to a "traditional" layout and switched-off the compositor. The result is now usable (very much so ). I suppose Xfce users who stumble across this post will be smiling.