I have a eclipse project that uses the webbrowser from eclipse SWT which runs smoothly on my windows eclipse. I share the project (via SVN) and try to run it on my 64 Bit Linux system. I downloaded a stable swt version for 64 bit linux and imported it into my workspace.
but when i try to start the swt-webbrowser, i get this error:
(SWT:2882): Gtk-CRITICAL **: IA__gtk_window_group_remove_window: assertion 'window->group == window_group' failed
and the browser doesnt start.
It fits the eclipse-bug-discussion here but i dont really understand how I can fix it!
I had the same problem and finally came across this little gem that explains you can fix it by adding a couple of parameters to your eclipse.ini file.
Firstly, ensure that the xulrunner package is installed on your system. Then add the following two lines to eclipse.ini:
-Dorg.eclipse.swt.browser.DefaultType=mozilla
-Dorg.eclipse.swt.browser.XULRunnerPath=/usr/bin/xulrunner
If this doesn't work, you can try WebKit by adding this line instead:
-Dorg.eclipse.swt.browser.UseWebKitGTK=true
来源：https://stackoverflow.com/questions/20639049/eclipse-swt-browser-crash-linux-64bit