Following error occurred during user login when sssd is configured and the rh-sso7-libunix-dbus-java is installed.

There is a workaround for this issue. Copy or create symlinks for the libunix_dbus_java.so files
cp /opt/rh/rh-sso7/root/usr/lib64/libunix_dbus_java.so.0* /usr/lib64

Caused by: java.lang.UnsatisfiedLinkError: cx/ath/matthew/unix/UnixSocket.native_connect(Ljava/lang/String;Z)I
at cx.ath.matthew.unix.UnixSocket.connect(UnixSocket.java:111)
at org.freedesktop.dbus.Transport.connect(Transport.java:787)
at org.freedesktop.dbus.Transport.<init>(Transport.java:757)
at org.freedesktop.dbus.DBusConnection.<init>(DBusConnection.java:301)
at org.freedesktop.dbus.DBusConnection.getConnection(DBusConnection.java:284)
at org.keycloak.federation.sssd.api.Sssd$SingletonHolder.<clinit>(Sssd.java:71)
at org.keycloak.federation.sssd.api.Sssd.infopipe(Sssd.java:46)
at org.keycloak.federation.sssd.api.Sssd.getUserAttributes(Sssd.java:94)