@NonNull now uses a slightly longer exception message.

test/transform/resource/after-ecj/NonNullOnParameterOfDefaultMethod.java

@@ -3,7 +3,7 @@ interface NonNullOnParameterOfDefaultMethod {
   default void test2(@lombok.NonNull String arg) {
     if ((arg == null))
         {
-          throw new java.lang.NullPointerException("arg");
+          throw new java.lang.NullPointerException("arg is marked @NonNull but is null");
         }
     System.out.println(arg);
   }