Index: trunk/src/org/openstreetmap/josm/actions/OrthogonalizeAction.java
===================================================================
--- trunk/src/org/openstreetmap/josm/actions/OrthogonalizeAction.java	(revision 16174)
+++ trunk/src/org/openstreetmap/josm/actions/OrthogonalizeAction.java	(revision 16175)
@@ -210,30 +210,25 @@
         final int nodesCount = nodeList.size();
         if (wayDataList.isEmpty() && nodesCount > 2) {
-            final WayData data = new WayData(nodeList);
-            final Collection<Command> commands = orthogonalize(Collections.singletonList(data), Collections.<Node>emptyList());
-            return new SequenceCommand(tr("Orthogonalize"), commands);
-        } else if (wayDataList.isEmpty()) {
-            throw new InvalidUserInputException("usage");
-        } else {
-            if (nodesCount <= 2) {
-                OrthogonalizeAction.rememberMovements.clear();
-                final Collection<Command> commands = new LinkedList<>();
-
-                if (nodesCount == 2) {  // fixed direction, or single node to move
-                    commands.addAll(orthogonalize(wayDataList, nodeList));
-                } else if (nodesCount == 1) {
-                    commands.add(orthogonalize(wayDataList, nodeList.get(0)));
-                } else if (nodesCount == 0) {
-                    for (List<WayData> g : buildGroups(wayDataList)) {
-                        commands.addAll(orthogonalize(g, nodeList));
-                    }
-                }
-
+            return new SequenceCommand(tr("Orthogonalize"),
+                    orthogonalize(Collections.singletonList(new WayData(nodeList)), Collections.<Node>emptyList()));
+        } else if (!wayDataList.isEmpty() && nodesCount <= 2) {
+            OrthogonalizeAction.rememberMovements.clear();
+            final Collection<Command> commands = new LinkedList<>();
+
+            if (nodesCount == 2) {  // fixed direction, or single node to move
+                commands.addAll(orthogonalize(wayDataList, nodeList));
+            } else if (nodesCount == 1) {
+                commands.add(orthogonalize(wayDataList, nodeList.get(0)));
+            } else if (nodesCount == 0) {
+                for (List<WayData> g : buildGroups(wayDataList)) {
+                    commands.addAll(orthogonalize(g, nodeList));
+                }
+            }
+
+            if (!commands.isEmpty()) {
                 return new SequenceCommand(tr("Orthogonalize"), commands);
-
-            } else {
-                throw new InvalidUserInputException("usage");
-            }
-        }
+            }
+        }
+        throw new InvalidUserInputException("usage");
     }