eclipse crashes in Ubuntu 14.04 when using oxygen-gtk theme

eclipse crashes in Ubuntu 14.04 when using oxygen-gtk theme (which AFAIK is the default when running eclipse under KDE).

Steps to reproduce:
env GTK2_RC_FILES=/usr/share/themes/oxygen-gtk/gtk-2.0/gtkrc eclipse
- Open the properties dialog for a project
- Close the dialog

Result:
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007ff89e26d718, pid=9825, tid=140706574657280
#
# JRE version: OpenJDK Runtime Environment (7.0_65-b32) (build 1.7.0_65-b32)
# Java VM: OpenJDK 64-Bit Server VM (24.65-b04 mixed mode linux-amd64 compressed oops)
# Derivative: IcedTea 2.5.3
# Distribution: Ubuntu 14.04 LTS, package 7u71-2.5.3-0ubuntu0.14.04.1
# Problematic frame:
# C [libgobject-2.0.so.0+0x19718] g_object_get_qdata+0x18
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/kiesssn/hs_err_pid9825.log
#
# If you would like to submit a bug report, please include
# instructions on how to reproduce the bug and visit:
# http://icedtea.classpath.org/bugzilla
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

Package versions:
ii eclipse 3.8.1-5.1 all Extensible Tool Platform and Java IDE
ii gtk2-engines-oxygen:amd64 1.4.5-0ubuntu1 amd64 Oxygen widget theme for GTK+-based applications

Adding this line to the end of ~/.gtkrc-2.0 will fix (or workaround) the problem (unless GTK2_RC_FILES is set and the file is not read):
style "oxygen-default" { GtkComboBox::appears-as-list = 0 }
Setting GtkComboBox::appears-as-list in /usr/share/themes/oxygen-gtk/gtk-2.0/gtkrc to 0 also works.

Related bug reports:
https://bugzilla.gnome.org/show_bug.cgi?id=736323
https://bugs.eclipse.org/bugs/show_bug.cgi?id=372560
http://askubuntu.com/questions/513471/kubuntu-14-04eclipse-adt-crashes-at-button-ok-from-project-properties