The latest eclipse has a strange aspect in XFCE 4.11 with the Adwaita theme.
The following images show the main problems
The background of the tool-tip is white, instead of the Adwaita blue.
The side arrows that open sub menus are plain ugly.
Apart from this, the padding in the bars makes it very difficult to use in my laptop.
Does anyone have any suggestion?
To fix the tooltip, try to disable GTK3 by expoting
SWT_GTK3=0. You can do this by creating a .desktop file if not already created (right click on desktop 'Create Launcher...', configure it for eclipse). Open the .desktop file with text editor and modify the line holding the execution:
Exec=env SWT_GTK3=0 command_to_launch_eclipse