Eclipse ADT on Opensuse crashes

I recently installed the Eclipse + ADT plugin on a Opensuse x64. It was nearly unusable due a nasty series of crashes.

Eclipse logo 800x188
Eclipse logo

SIGSEGV (0xb) at pc=0x00007f3d9fbaa685 ….

or

[libgobject-2.0.so.0+0x198c8] g_object_get_qdata+0x18 ….

various suggestions, such as putting

-Dorg.eclipse.swt.browser.DefaultType=mozilla

found online did not work.
What worked for me was installing gtk3-engine-oxygen and configuring Opensuse to use the Gtk theme via Configure Desktop-> Application Appareance-> Gtk and choosing the raleigh theme for Gtk2.

Configuration settings for GTK+
Configuration settings for GTK+

It solved the problem completely for me. It seems that this is not a OpenJDK issue nor an Eclipse issue.