Java API: fixing Objdetect tests

modules/java/android_test/src/org/opencv/test/imgproc/Subdiv2DTest.java

 package org.opencv.test.imgproc;
 
-import org.opencv.core.Mat;
+import org.opencv.core.CvVectorFloat6;
 import org.opencv.core.Point;
 import org.opencv.core.Rect;
 import org.opencv.imgproc.Subdiv2D;
@@ -50,7 +50,7 @@ public class Subdiv2DTest extends OpenCVTestCase {
     	s2d.insert( new Point(20, 10) );
     	s2d.insert( new Point(20, 20) );
     	s2d.insert( new Point(10, 20) );
-    	Mat triangles = new Mat();
+    	CvVectorFloat6 triangles = new CvVectorFloat6();
     	s2d.getTriangleList(triangles);
     	assertEquals(10, triangles.rows());
     	/*

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

 package org.opencv.test.objdetect;
 
-import java.util.ArrayList;
-
+import org.opencv.core.CvVectorRect;
 import org.opencv.core.Mat;
-import org.opencv.core.Rect;
 import org.opencv.core.Size;
 import org.opencv.imgproc.Imgproc;
 import org.opencv.objdetect.CascadeClassifier;
@@ -34,14 +32,14 @@ public class CascadeClassifierTest extends OpenCVTestCase {
 
     public void testDetectMultiScaleMatListOfRect() {
         CascadeClassifier cc = new CascadeClassifier(OpenCVTestRunner.LBPCASCADE_FRONTALFACE_PATH);
-        ArrayList<Rect> faces = new ArrayList<Rect>();
+        CvVectorRect faces = new CvVectorRect();
 
         Mat greyLena = new Mat();
         Imgproc.cvtColor(rgbLena, greyLena, Imgproc.COLOR_RGB2GRAY);
 
         // TODO: doesn't detect with 1.1 scale
         cc.detectMultiScale(greyLena, faces, 1.09, 3, Objdetect.CASCADE_SCALE_IMAGE, new Size(30, 30), new Size());
-        assertEquals(1, faces.size());
+        assertEquals(1, faces.total());
     }
 
     public void testDetectMultiScaleMatListOfRectDouble() {

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

 package org.opencv.test.objdetect;
 
-import java.util.ArrayList;
-
-import org.opencv.core.Rect;
+import org.opencv.core.CvVectorRect;
 import org.opencv.objdetect.Objdetect;
 import org.opencv.test.OpenCVTestCase;
 
@@ -10,27 +8,27 @@ public class ObjdetectTest extends OpenCVTestCase {
 
     public void testGroupRectanglesListOfRectListOfIntegerInt() {
         fail("Not yet implemented");
-        Rect r = new Rect(10, 10, 20, 20);
-        ArrayList<Rect> rects = new ArrayList<Rect>();
+        final int NUM = 10;
+        CvVectorRect rects = new CvVectorRect(NUM);
 
-        for (int i = 0; i < 10; i++)
-            rects.add(r);
+        for (int i = 0; i < NUM; i++)
+            rects.put(i, 0, 10, 10, 20, 20);
 
         int groupThreshold = 1;
         Objdetect.groupRectangles(rects, null, groupThreshold);//TODO: second parameter should not be null
-        assertEquals(1, rects.size());
+        assertEquals(1, rects.total());
     }
 
     public void testGroupRectanglesListOfRectListOfIntegerIntDouble() {
         fail("Not yet implemented");
-        Rect r1 = new Rect(10, 10, 20, 20);
-        Rect r2 = new Rect(10, 10, 25, 25);
-        ArrayList<Rect> rects = new ArrayList<Rect>();
-
-        for (int i = 0; i < 10; i++)
-            rects.add(r1);
-        for (int i = 0; i < 10; i++)
-            rects.add(r2);
+        final int NUM = 10;
+        CvVectorRect rects = new CvVectorRect(NUM);
+
+        for (int i = 0; i < NUM; i++)
+            rects.put(i, 0, 10, 10, 20, 20);
+        
+        for (int i = 0; i < NUM; i++)
+            rects.put(i, 0, 10, 10, 25, 25);
 
         int groupThreshold = 1;
         double eps = 0.2;