Index: applications/editors/josm/plugins/print/src/org/openstreetmap/josm/plugins/print/PrintDialog.java
===================================================================
--- applications/editors/josm/plugins/print/src/org/openstreetmap/josm/plugins/print/PrintDialog.java	(revision 30707)
+++ applications/editors/josm/plugins/print/src/org/openstreetmap/josm/plugins/print/PrintDialog.java	(revision 30737)
@@ -475,5 +475,5 @@
         PrintService service = job.getPrintService();
         if (service != null) {
-            Collection<Collection<String>> serviceAttributes = new ArrayList<Collection<String>>();
+            Collection<Collection<String>> serviceAttributes = new ArrayList<>();
             for (Attribute a : service.getAttributes().toArray()) {
                 if ("printer-name".equals(a.getName()) && a instanceof TextSyntax) {
@@ -486,5 +486,5 @@
         // Save all request attributes
         Collection<String> ignoredAttributes = Arrays.asList("media-printable-area");
-        Collection<Collection<String>> requestAttributes = new ArrayList<Collection<String>>();
+        Collection<Collection<String>> requestAttributes = new ArrayList<>();
         for (Attribute a : attrs.toArray()) {
             Collection<String> setting = null;
@@ -507,5 +507,5 @@
     
     protected Collection<String> marshallPrintSetting(Attribute a, Class<?> syntaxClass, String value) {
-        return new ArrayList<String>(Arrays.asList(a.getCategory().getName(), a.getClass().getName(), syntaxClass.getName(), value));
+        return new ArrayList<>(Arrays.asList(a.getCategory().getName(), a.getClass().getName(), syntaxClass.getName(), value));
     }
     
Index: applications/editors/josm/plugins/print/src/org/openstreetmap/josm/plugins/print/PrintableMapView.java
===================================================================
--- applications/editors/josm/plugins/print/src/org/openstreetmap/josm/plugins/print/PrintableMapView.java	(revision 30707)
+++ applications/editors/josm/plugins/print/src/org/openstreetmap/josm/plugins/print/PrintableMapView.java	(revision 30737)
@@ -412,5 +412,5 @@
     @Override
     protected List<Layer> getVisibleLayersInZOrder() {
-        ArrayList<Layer> layers = new ArrayList<Layer>();
+        ArrayList<Layer> layers = new ArrayList<>();
         for (Layer l: mapView.getAllLayersAsList()) {
             if (l.isVisible()) {