Index: src/org/openstreetmap/josm/gui/historycombobox/SuggestingJHistoryComboBox.java
===================================================================
--- src/org/openstreetmap/josm/gui/historycombobox/SuggestingJHistoryComboBox.java	(revision 1584)
+++ src/org/openstreetmap/josm/gui/historycombobox/SuggestingJHistoryComboBox.java	(working copy)
@@ -109,7 +109,11 @@
 			if (suggestion.startsWith(text)) {
 				textField.setActionCommand("SUGGEST");
 				doc.setConsumeEvents(true);
-				textField.setText(suggestion);
+				// avoid unbound recursion via setText() -> replace() -> 
+				// suggest() -> setText() ... in some environments
+				if (! text.equals(suggestion)) {
+				    textField.setText(suggestion);
+				}
 				textField.setSelectionStart(text.length());
 				textField.setSelectionEnd(textField.getText().length());
 				doc.setConsumeEvents(false);