Pull #2287: use Objects#requireNonNull

Author: Vincent Potucek

impl/maven-impl/src/main/java/org/apache/maven/impl/ImplUtils.java

@@ -31,17 +31,15 @@ class ImplUtils {
      */
     @Deprecated
     public static <T> T nonNull(T t) {
-        if (t == null) {
-            throw new IllegalArgumentException();
-        }
-        return t;
+        return Objects.requireNonNull(t);
     }
 
+    /**
+     * @deprecated Use {@link Objects#requireNonNull(Object, String)} instead.
+     */
+    @Deprecated
     public static <T> T nonNull(T t, String name) {
-        if (t == null) {
-            throw new IllegalArgumentException(name + " cannot be null");
-        }
-        return t;
+        return Objects.requireNonNull(t, name);
     }
 
     public static <T> T cast(Class<T> clazz, Object o, String name) {