diff --git a/src/main/java/org/apache/commons/math/stat/descriptive/summary/Product.java b/src/main/java/org/apache/commons/math/stat/descriptive/summary/Product.java
index 3bfc85317..ab59050bc 100644
--- a/src/main/java/org/apache/commons/math/stat/descriptive/summary/Product.java
+++ b/src/main/java/org/apache/commons/math/stat/descriptive/summary/Product.java
@@ -167,7 +167,7 @@ public class Product extends AbstractStorelessUnivariateStatistic implements Ser
         }
         return product;
     }
-    
+
     /**
      * <p>Returns the weighted product of the entries in the input array.</p>
      *
diff --git a/src/main/java/org/apache/commons/math/stat/descriptive/summary/Sum.java b/src/main/java/org/apache/commons/math/stat/descriptive/summary/Sum.java
index b8e6b22f0..2b0fd9b75 100644
--- a/src/main/java/org/apache/commons/math/stat/descriptive/summary/Sum.java
+++ b/src/main/java/org/apache/commons/math/stat/descriptive/summary/Sum.java
@@ -166,7 +166,7 @@ public class Sum extends AbstractStorelessUnivariateStatistic implements Seriali
         }
         return sum;
     }
-    
+
     /**
      * The weighted sum of the entries in the the input array.
      * <p>