I was compiling OpenCV 3.0.0 with Java support. My script was:
mkdir /opt/opencv /opt/opencv/opencv-build
cd /opt/opencv
git clone https://github.com/Itseez/
Short Answer : There is no more HighGUI module in Java for 3.0 anymore.
Long One : The functionality in HighGUI has been split into two additional modules:
Since there's no GUI functionality exposed to Java, there is no need to have a HighGUI module in Java anymore.