RegionChooser: Fix JavaFX thread problem.

src/eu/simstadt/nf4j/ExportJobFromJavaFXRegionChooser.java

@@ -2,6 +2,7 @@
 
 import java.io.File;
 import java.util.ArrayList;
+import javafx.application.Platform;
 import netscape.javascript.JSObject;
 import com.vividsolutions.jts.geom.Coordinate;
 import com.vividsolutions.jts.geom.Geometry;
@@ -89,9 +90,13 @@ public void jobStatusChanged(JobStatusEvent event) {
 			try {
 				File file = job.getResult();
 				novaFactoryOpenLayer.call("updateStatus", "DOWNLOADED AS ZIP");
-				//				novaFactoryOpenLayer.call("selectSaveFile", file.toString());
-				//				System.out.println("CityGML at " + file.getAbsolutePath());
 				//TODO: Call downloadFinished if FAILED
+				Platform.runLater(new Runnable() {
+					@Override
+					public void run() {
+						novaFactoryOpenLayer.call("selectSaveFile", file.toString());
+					}
+				});
 				novaFactoryOpenLayer.call("downloadFinished");
 			} catch (FailedTransmissionException ex) {
 				ex.printStackTrace();