Index: trunk/src/org/openstreetmap/josm/tools/PlatformHookUnixoid.java
===================================================================
--- trunk/src/org/openstreetmap/josm/tools/PlatformHookUnixoid.java	(revision 9748)
+++ trunk/src/org/openstreetmap/josm/tools/PlatformHookUnixoid.java	(revision 9750)
@@ -98,4 +98,8 @@
     @Override
     public void preStartupHook() {
+        // See #12022 - Disable GNOME ATK Java wrapper as it causes a lot of serious trouble
+        if ("org.GNOME.Accessibility.AtkWrapper".equals(System.getProperty("assistive_technologies"))) {
+            System.clearProperty("assistive_technologies");
+        }
     }