Index: /trunk/src/org/openstreetmap/josm/tools/Predicates.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/tools/Predicates.java	(revision 10593)
+++ /trunk/src/org/openstreetmap/josm/tools/Predicates.java	(revision 10594)
@@ -80,5 +80,5 @@
     public static <T> Predicate<T> isInstanceOf(final Class<? extends T> clazz) {
         CheckParameterUtil.ensureParameterNotNull(clazz, "clazz");
-        return o -> clazz.isInstance(o);
+        return clazz::isInstance;
     }
 
@@ -136,5 +136,5 @@
      */
     public static <T> Predicate<T> inCollection(final Collection<? extends T> target) {
-        return object -> target.contains(object);
+        return target::contains;
     }