--- old/src/java.base/share/classes/jdk/internal/logger/DefaultLoggerFinder.java	2017-03-31 15:13:54.000000000 +0100
+++ new/src/java.base/share/classes/jdk/internal/logger/DefaultLoggerFinder.java	2017-03-31 15:13:54.000000000 +0100
@@ -30,6 +30,7 @@
 import java.util.HashMap;
 import java.util.Map;
 import java.util.function.Function;
+import java.util.Objects;
 import java.lang.System.LoggerFinder;
 import java.lang.System.Logger;
 import java.lang.ref.ReferenceQueue;
@@ -155,6 +156,8 @@
 
     @Override
     public final Logger getLogger(String name,  Module module) {
+        Objects.requireNonNull(name, "name");
+        Objects.requireNonNull(module, "module");
         checkPermission();
         return demandLoggerFor(name, module);
     }