Avoid some Findbugs complaints

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_X@1066395 13f79535-47bb-0310-9956-ffa450edef68

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
     }
 
     /**

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
     }
 
     /**