Use Objects.requireNonNull() instead of custom check. Minor formatting.
diff --git a/processor/src/main/java/org/apache/commons/weaver/model/ScanRequest.java b/processor/src/main/java/org/apache/commons/weaver/model/ScanRequest.java
index 1c4cb17..4894174 100644
--- a/processor/src/main/java/org/apache/commons/weaver/model/ScanRequest.java
+++ b/processor/src/main/java/org/apache/commons/weaver/model/ScanRequest.java
@@ -23,6 +23,7 @@
 import java.util.Collections;
 import java.util.LinkedHashSet;
 import java.util.List;
+import java.util.Objects;
 import java.util.Set;
 
 import org.apache.commons.lang3.Validate;
@@ -44,9 +45,7 @@
      * @return {@code this}, fluently
      */
     public ScanRequest add(final WeaveInterest interest) {
-        if (interest == null) {
-            throw new NullPointerException();
-        }
+        Objects.requireNonNull(interest, "interest");
         interests.add(interest);
         return this;
     }