Added some new tests for Java API

modules/java/android_test/src/org/opencv/test/calib3d/calib3dTest.java

@@ -10,7 +10,6 @@ import org.opencv.core.Point3;
 import org.opencv.core.Scalar;
 import org.opencv.core.Size;
 import org.opencv.test.OpenCVTestCase;
-import org.opencv.test.OpenCVTestRunner;
 
 import java.util.ArrayList;
 import java.util.List;

modules/java/android_test/src/org/opencv/test/objdetect/HOGDescriptorTest.java

@@ -192,7 +192,7 @@ public class HOGDescriptorTest extends OpenCVTestCase {
     public void testHOGDescriptor() {
         HOGDescriptor hog = new HOGDescriptor();
 
-        assertTrue(null != hog);
+        assertNotNull(hog);
         assertEquals(HOGDescriptor.DEFAULT_NLEVELS, hog.get_nlevels());
     }
 

modules/java/android_test/src/org/opencv/test/video/KalmanFilterTest.java

 package org.opencv.test.video;
 
 import org.opencv.test.OpenCVTestCase;
+import org.opencv.video.KalmanFilter;
 
 public class KalmanFilterTest extends OpenCVTestCase {
 
@@ -13,7 +14,9 @@ public class KalmanFilterTest extends OpenCVTestCase {
     }
 
     public void testKalmanFilter() {
-		fail("Not yet implemented");
+        KalmanFilter kf = new KalmanFilter();
+
+        assertNotNull(kf);
     }
 
     public void testKalmanFilterIntInt() {