Eclipse IDE missing icons and menus

Solution 1:

in eclipse.ini

insert

--launcher.GTK_version
2 

before

--launcher.appendVmargs

Solution 2:

Run Eclipse with the clearPersistedState option:

eclipse -clearPersistedState

The toolbar will be shown again, but you will lose some UI state, like the list of open files.

Solution 3:

Same issue here. I didn't get the eclipse.ini solution to work either.

I tested the suggested solution here: https://stackoverflow.com/questions/36822242/eclipse-doesnt-work-with-ubuntu-16-04/36825434#36825434

export SWT_GTK3=0 ./eclipse

That fixed it for me. There are a few graphics issues with the dark theme, but good enough to work with.