Index: trunk/src/org/openstreetmap/josm/gui/download/DownloadDialog.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/download/DownloadDialog.java	(revision 12732)
+++ trunk/src/org/openstreetmap/josm/gui/download/DownloadDialog.java	(revision 12733)
@@ -643,5 +643,5 @@
     private static class DownloadDialogSplitPane extends JSplitPane {
         private DownloadSourceSizingPolicy policy;
-        private JTabbedPane topComponent;
+        private final JTabbedPane topComponent;
 
         DownloadDialogSplitPane(JTabbedPane newTopComponent, Component newBottomComponent) {
Index: trunk/src/org/openstreetmap/josm/gui/download/OverpassDownloadSource.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/download/OverpassDownloadSource.java	(revision 12732)
+++ trunk/src/org/openstreetmap/josm/gui/download/OverpassDownloadSource.java	(revision 12733)
@@ -91,6 +91,6 @@
         private static final String ACTION_IMG_SUBDIR = "dialogs";
 
-        private JosmTextArea overpassQuery;
-        private OverpassQueryList overpassQueryList;
+        private final JosmTextArea overpassQuery;
+        private final OverpassQueryList overpassQueryList;
 
         /**
@@ -379,6 +379,6 @@
      */
     static class OverpassDownloadData {
-        private String query;
-        private Consumer<Collection<Object>> errorReporter;
+        private final String query;
+        private final Consumer<Collection<Object>> errorReporter;
 
         OverpassDownloadData(String query, Consumer<Collection<Object>> errorReporter) {