Fix an issue where multiple bbox downloads would case an exception

Signed-off-by: Taylor Smock <taylor.smock@kaart.com>

src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/MapWithAIDataUtils.java

@@ -171,6 +171,7 @@ public final class MapWithAIDataUtils {
                             realBBoxes.size()),
                     null, JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.WARNING_MESSAGE, JOptionPane.YES_OPTION)) {
                 final PleaseWaitProgressMonitor monitor = new PleaseWaitProgressMonitor();
+                monitor.beginTask(tr("Downloading {0} Data", MapWithAIPlugin.NAME), realBounds.size());
                 realBounds.parallelStream()
                         .forEach(bound -> MapWithAIPreferenceHelper.getMapWithAIUrl().parallelStream()
                                 .filter(map -> map.containsKey("url")).map(MapWithAIDataUtils::getUrl)
@@ -178,7 +179,7 @@ public final class MapWithAIDataUtils {
                                     BoundingBoxMapWithAIDownloader downloader = new BoundingBoxMapWithAIDownloader(
                                             bound, url, DetectTaskingManagerUtils.hasTaskingManagerLayer());
                                     try {
-                                        DataSet ds = downloader.parseOsm(monitor);
+                                        DataSet ds = downloader.parseOsm(monitor.createSubTaskMonitor(1, false));
                                         synchronized (MapWithAIDataUtils.class) {
                                             dataSet.mergeFrom(ds);
                                         }

test/unit/org/openstreetmap/josm/plugins/mapwithai/backend/MapWithAIDataUtilsTest.java

@@ -85,6 +85,17 @@ public class MapWithAIDataUtilsTest {
         assertEquals(1, ds.getWays().size(), "There should only be one way in the testBBox");
     }
 
+    /**
+     * Test that getting multiple bboxes does not create an exception
+     */
+    @Test
+    public void testGetDataMultiple() {
+        final BBox testBBox = getTestBBox();
+        final BBox testBBox2 = new BBox(-108.4495519, 39.095376, -108.4422314, 39.0987811);
+        final DataSet ds = new DataSet(MapWithAIDataUtils.getData(Arrays.asList(testBBox, testBBox2)));
+        assertEquals(2, ds.getDataSourceBounds().size());
+    }
+
     /**
      * This gets data from MapWithAI. This test may fail if someone adds the data to
      * OSM.