diff --git a/src/test/java/org/apache/commons/math/analysis/interpolation/BicubicSplineInterpolatingFunctionTest.java b/src/test/java/org/apache/commons/math/analysis/interpolation/BicubicSplineInterpolatingFunctionTest.java
index f042f06b4..4e8807281 100644
--- a/src/test/java/org/apache/commons/math/analysis/interpolation/BicubicSplineInterpolatingFunctionTest.java
+++ b/src/test/java/org/apache/commons/math/analysis/interpolation/BicubicSplineInterpolatingFunctionTest.java
@@ -106,6 +106,7 @@ public final class BicubicSplineInterpolatingFunctionTest {
         } catch (DimensionMismatchException e) {
             // Expected
         }
+        Assert.assertNotNull(bcf); // Avoid Findbugs "dead store" warning
     }
 
     /**
diff --git a/src/test/java/org/apache/commons/math/analysis/interpolation/TricubicSplineInterpolatingFunctionTest.java b/src/test/java/org/apache/commons/math/analysis/interpolation/TricubicSplineInterpolatingFunctionTest.java
index 16f262a84..1392d1142 100644
--- a/src/test/java/org/apache/commons/math/analysis/interpolation/TricubicSplineInterpolatingFunctionTest.java
+++ b/src/test/java/org/apache/commons/math/analysis/interpolation/TricubicSplineInterpolatingFunctionTest.java
@@ -265,6 +265,7 @@ public final class TricubicSplineInterpolatingFunctionTest {
         } catch (DimensionMismatchException e) {
             // Expected
         }
+        Assert.assertNotNull(tcf); // Avoid Findbugs "dead store" warning
     }
 
     /**