Fixed test errors.

src/main/java/org/orekit/estimation/measurements/modifiers/DynamicOutlierFilter.java

@@ -51,14 +51,14 @@ public class DynamicOutlierFilter<T extends ObservedMeasurement<T>> extends Outl
      * @return The current value of sigma
      */
     public double[] getSigma() {
-        return sigma.clone();
+        return sigma == null ? null : sigma.clone();
     }
 
     /** Set the current value of sigma.
      * @param sigma The value of sigma to set
      */
     public void setSigma(final double[] sigma) {
-        this.sigma = sigma.clone();
+        this.sigma = sigma == null ? null : sigma.clone();
     }
 
     /** {@inheritDoc} */

src/test/java/org/orekit/models/earth/SaastamoinenModelTest.java

@@ -19,12 +19,6 @@ package org.orekit.models.earth;
 
 import static org.junit.Assert.assertEquals;
 
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-
 import org.hipparchus.util.FastMath;
 import org.hipparchus.util.Precision;
 import org.junit.Assert;
@@ -76,48 +70,6 @@ public class SaastamoinenModelTest {
         }
     }
 
-    @Test
-    public void testSerialization()
-      throws IOException, ClassNotFoundException {
-        Utils.setDataRoot("atmosphere");
-        SaastamoinenModel model = SaastamoinenModel.getStandardModel();
-
-        ByteArrayOutputStream bos = new ByteArrayOutputStream();
-        ObjectOutputStream    oos = new ObjectOutputStream(bos);
-        oos.writeObject(model);
-
-        Assert.assertTrue(bos.size() > 1400);
-        Assert.assertTrue(bos.size() < 1500);
-
-        ByteArrayInputStream  bis = new ByteArrayInputStream(bos.toByteArray());
-        ObjectInputStream     ois = new ObjectInputStream(bis);
-        SaastamoinenModel deserialized  = (SaastamoinenModel) ois.readObject();
-
-        double[] heights = new double[] {
-            0.0, 250.0, 500.0, 750.0, 1000.0, 1250.0, 1500.0, 1750.0, 2000.0, 2250.0, 2500.0, 2750.0, 3000.0, 3250.0,
-            3500.0, 3750.0, 4000.0, 4250.0, 4500.0, 4750.0, 5000.0
-        };
-        double[] elevations = new double[] {
-            FastMath.toRadians(10.0), FastMath.toRadians(15.0), FastMath.toRadians(20.0),
-            FastMath.toRadians(25.0), FastMath.toRadians(30.0), FastMath.toRadians(35.0),
-            FastMath.toRadians(40.0), FastMath.toRadians(45.0), FastMath.toRadians(50.0),
-            FastMath.toRadians(55.0), FastMath.toRadians(60.0), FastMath.toRadians(65.0),
-            FastMath.toRadians(70.0), FastMath.toRadians(75.0), FastMath.toRadians(80.0),
-            FastMath.toRadians(85.0), FastMath.toRadians(90.0)
-        };
-        for (int h = 0; h < heights.length; h++) {
-            for (int e = 0; e < elevations.length; e++) {
-                double height = heights[h];
-                double elevation = elevations[e];
-                double expectedValue = model.pathDelay(elevation, height);
-                double actualValue = deserialized.pathDelay(elevation, height);
-                assertEquals("For height=" + height + " elevation = " + elevation + " precision not met",
-                             expectedValue, actualValue, epsilon);
-            }
-        }
-
-    }
-
     @Test
     public void compareDefaultAndLoaded() {
         Utils.setDataRoot("atmosphere");