diff --git a/modules/java/src/cpp/converters.cpp b/modules/java/src/cpp/converters.cpp
index 94716e5ec..a2ffb7c96 100644
--- a/modules/java/src/cpp/converters.cpp
+++ b/modules/java/src/cpp/converters.cpp
@@ -18,7 +18,7 @@ using namespace cv;
 void Mat_to_vector_int(Mat& mat, vector<int>& v_int)
 {
 	v_int.clear();
-	CHECK_MAT(mat.type()!= CV_32SC1 || mat.rows!=1);
+	CHECK_MAT(mat.type()!= CV_32SC1 || mat.cols!=1);
 	v_int = (vector<int>) mat;
 }
 
@@ -33,7 +33,7 @@ void vector_int_to_Mat(vector<int>& v_int, Mat& mat)
 void Mat_to_vector_double(Mat& mat, vector<double>& v_double)
 {
 	v_double.clear();
-	CHECK_MAT(mat.type()!= CV_64FC1 || mat.rows!=1);
+	CHECK_MAT(mat.type()!= CV_64FC1 || mat.cols!=1);
 	v_double = (vector<double>) mat;
 }
 
@@ -48,7 +48,7 @@ void vector_double_to_Mat(vector<double>& v_double, Mat& mat)
 void Mat_to_vector_float(Mat& mat, vector<float>& v_float)
 {
 	v_float.clear();
-	CHECK_MAT(mat.type()!= CV_32FC1 || mat.rows!=1);
+	CHECK_MAT(mat.type()!= CV_32FC1 || mat.cols!=1);
 	v_float = (vector<float>) mat;
 }
 
@@ -63,7 +63,7 @@ void vector_float_to_Mat(vector<float>& v_float, Mat& mat)
 void Mat_to_vector_uchar(Mat& mat, vector<uchar>& v_uchar)
 {
 	v_uchar.clear();
-	CHECK_MAT(mat.type()!= CV_8UC1 || mat.rows!=1);
+	CHECK_MAT(mat.type()!= CV_8UC1 || mat.cols!=1);
 	v_uchar = (vector<uchar>) mat;
 }
 
@@ -73,21 +73,13 @@ void Mat_to_vector_uchar(Mat& mat, vector<uchar>& v_uchar)
 void Mat_to_vector_Rect(Mat& mat, vector<Rect>& v_rect)
 {
 	v_rect.clear();
-	CHECK_MAT(mat.type()!= CV_32SC4 || mat.rows!=1);
+	CHECK_MAT(mat.type()!= CV_32SC4 || mat.cols!=1);
 	v_rect = (vector<Rect>) mat;
-	/*for(int i=0; i<mat.cols; i++) {
-		Vec<int, 4> v=mat.at< Vec<int, 4> >(0, i);
-		v_rect.push_back( Rect(v[0], v[1], v[2], v[3]) );
-	}*/
 }
 
 void vector_Rect_to_Mat(vector<Rect>& v_rect, Mat& mat)
 {
 	mat = Mat(v_rect);
-	/*mat.create(1, v_rect.size(), CV_32SC4);
-	for(size_t i=0; i<v_rect.size(); i++) {
-		mat.at< Vec<int, 4> >(0, i) = Vec<int, 4>(v_rect[i].x, v_rect[i].y, v_rect[i].width, v_rect[i].height);
-	}*/
 }
 
 
@@ -95,19 +87,14 @@ void vector_Rect_to_Mat(vector<Rect>& v_rect, Mat& mat)
 void Mat_to_vector_Point(Mat& mat, vector<Point>& v_point)
 {
 	v_point.clear();
-	CHECK_MAT(mat.type()!= CV_32SC2 || mat.rows!=1);
+	CHECK_MAT(mat.type()!= CV_32SC2 || mat.cols!=1);
 	v_point = (vector<Point>) mat;
-	/*for(int i=0; i<mat.cols; i++)
-		v_point.push_back( Point( mat.at< Vec<int, 2> >(0, i) ) );*/
 }
 
 
 void vector_Point_to_Mat(vector<Point>& v_point, Mat& mat)
 {
 	mat = Mat(v_point);
-	/*mat.create(1, v_point.size(), CV_32SC2);
-	for(size_t i=0; i<v_point.size(); i++)
-		mat.at< Vec<int, 2> >(0, i) = Vec<int, 2>(v_point[i].x, v_point[i].y);*/
 }
 
 
@@ -115,10 +102,10 @@ void vector_Point_to_Mat(vector<Point>& v_point, Mat& mat)
 void Mat_to_vector_KeyPoint(Mat& mat, vector<KeyPoint>& v_kp)
 {
     v_kp.clear();
-    CHECK_MAT(mat.type()!= CV_64FC(7) || mat.rows!=1);
-	for(int i=0; i<mat.cols; i++)
+    CHECK_MAT(mat.type()!= CV_64FC(7) || mat.cols!=1);
+	for(int i=0; i<mat.rows; i++)
 	{
-		Vec<double, 7> v = mat.at< Vec<double, 7> >(0, i);
+		Vec<double, 7> v = mat.at< Vec<double, 7> >(i, 0);
 		KeyPoint kp((float)v[0], (float)v[1], (float)v[2], (float)v[3], (float)v[4], (int)v[5], (int)v[6]);
 		v_kp.push_back(kp);
 	}
@@ -129,11 +116,11 @@ void Mat_to_vector_KeyPoint(Mat& mat, vector<KeyPoint>& v_kp)
 void vector_KeyPoint_to_Mat(vector<KeyPoint>& v_kp, Mat& mat)
 {
 	int count = v_kp.size();
-	mat.create(1, count, CV_64FC(7));
+	mat.create(count, 1, CV_64FC(7));
 	for(int i=0; i<count; i++)
 	{
 		KeyPoint kp = v_kp[i];
-		mat.at< Vec<double, 7> >(0, i) = Vec<double, 7>(kp.pt.x, kp.pt.y, kp.size, kp.angle, kp.response, kp.octave, kp.class_id);
+		mat.at< Vec<double, 7> >(i, 0) = Vec<double, 7>(kp.pt.x, kp.pt.y, kp.size, kp.angle, kp.response, kp.octave, kp.class_id);
 	}
 }
 
@@ -142,11 +129,11 @@ void vector_KeyPoint_to_Mat(vector<KeyPoint>& v_kp, Mat& mat)
 void Mat_to_vector_Mat(cv::Mat& mat, std::vector<cv::Mat>& v_mat)
 {
 	v_mat.clear();
-	if(mat.type() == CV_32SC2 && mat.rows == 1)
+	if(mat.type() == CV_32SC2 && mat.cols == 1)
 	{
-		for(int i=0; i<mat.cols; i++)
+		for(int i=0; i<mat.rows; i++)
 		{
-			Vec<int, 2> a = mat.at< Vec<int, 2> >(0, i);
+			Vec<int, 2> a = mat.at< Vec<int, 2> >(i, 0);
 			long long addr = (((long long)a[0])<<32) | a[1];
 			Mat& m = *( (Mat*) addr );
 			v_mat.push_back(m);
@@ -158,10 +145,10 @@ void Mat_to_vector_Mat(cv::Mat& mat, std::vector<cv::Mat>& v_mat)
 void vector_Mat_to_Mat(std::vector<cv::Mat>& v_mat, cv::Mat& mat)
 {
 	int count = v_mat.size();
-	mat.create(1, count, CV_32SC2);
+	mat.create(count, 1, CV_32SC2);
 	for(int i=0; i<count; i++)
 	{
 		long long addr = (long long) new Mat(v_mat[i]);
-		mat.at< Vec<int, 2> >(0, i) = Vec<int, 2>(addr>>32, addr&0xffffffff);
+		mat.at< Vec<int, 2> >(i, 0) = Vec<int, 2>(addr>>32, addr&0xffffffff);
 	}
 }
diff --git a/modules/java/src/java/Converters.java b/modules/java/src/java/Converters.java
index 3d69d63bd..1706c4629 100644
--- a/modules/java/src/java/Converters.java
+++ b/modules/java/src/java/Converters.java
@@ -15,7 +15,7 @@ public class Converters {
         Mat res;
         int count = (pts!=null) ? pts.size() : 0;
         if(count>0){
-            res = new Mat(1, count, CvType.CV_32SC2);
+            res = new Mat(count, 1, CvType.CV_32SC2);
             int[] buff = new int[count*2];
             for(int i=0; i<count; i++) {
                 Point p = pts.get(i);
@@ -33,7 +33,7 @@ public class Converters {
         Mat res;
         int count = (pts!=null) ? pts.size() : 0;
         if(count>0){
-            res = new Mat(1, count, CvType.CV_32FC2);
+            res = new Mat(count, 1, CvType.CV_32FC2);
             float[] buff = new float[count*2];
             for(int i=0; i<count; i++) {
                 Point p = pts.get(i);
@@ -51,7 +51,7 @@ public class Converters {
         Mat res;
         int count = (pts!=null) ? pts.size() : 0;
         if(count>0){
-            res = new Mat(1, count, CvType.CV_32FC3);
+            res = new Mat(count, 1, CvType.CV_32FC3);
             float[] buff = new float[count*3];
             for(int i=0; i<count; i++) {
                 Point3 p = pts.get(i);
@@ -68,15 +68,16 @@ public class Converters {
 
     public static void Mat_to_vector_Point(Mat m, List<Point> pts) {
         if(pts == null)
-            throw new java.lang.IllegalArgumentException();
-        int cols = m.cols();
-        if(CvType.CV_32SC2 != m.type() ||  m.rows()!=1 )
-            throw new java.lang.IllegalArgumentException();
+            throw new java.lang.IllegalArgumentException("pts == null");
+        int count = m.rows();
+        if( CvType.CV_32SC2 != m.type() ||  m.cols()!=1 )
+            throw new java.lang.IllegalArgumentException(
+            		"CvType.CV_32SC2 != m.type() ||  m.cols()!=1\n" + m );
 
         pts.clear();
-        int[] buff = new int[2*cols];
+        int[] buff = new int[2*count];
         m.get(0, 0, buff);
-        for(int i=0; i<cols; i++) {
+        for(int i=0; i<count; i++) {
             pts.add( new Point(buff[i*2], buff[i*2+1]) );
         }
     }
@@ -85,7 +86,7 @@ public class Converters {
         Mat res;
         int count = (mats!=null) ? mats.size() : 0;
         if(count>0){
-            res = new Mat(1, count, CvType.CV_32SC2);
+            res = new Mat(count, 1, CvType.CV_32SC2);
             int[] buff = new int[count*2];
             for(int i=0; i<count; i++) {
                 long addr = mats.get(i).nativeObj;
@@ -101,15 +102,16 @@ public class Converters {
 
     public static void Mat_to_vector_Mat(Mat m, List<Mat> mats) {
         if(mats == null)
-            throw new java.lang.IllegalArgumentException();
-        int cols = m.cols();
-        if(CvType.CV_32SC2 != m.type() ||  m.rows()!=1 )
-            throw new java.lang.IllegalArgumentException();
+            throw new java.lang.IllegalArgumentException("mats == null");
+        int count = m.rows();
+        if( CvType.CV_32SC2 != m.type() ||  m.cols()!=1 )
+            throw new java.lang.IllegalArgumentException(
+            		"CvType.CV_32SC2 != m.type() ||  m.cols()!=1\n" + m);
 
         mats.clear();
-        int[] buff = new int[cols*2];
+        int[] buff = new int[count*2];
         m.get(0, 0, buff);
-        for(int i=0; i<cols; i++) {
+        for(int i=0; i<count; i++) {
             long addr = (((long)buff[i*2])<<32) | ((long)buff[i*2+1]);
             mats.add( new Mat(addr) );
         }
@@ -119,7 +121,7 @@ public class Converters {
         Mat res;
         int count = (fs!=null) ? fs.size() : 0;
         if(count>0){
-            res = new Mat(1, count, CvType.CV_32FC1); //Point can be saved into double[2]
+            res = new Mat(count, 1, CvType.CV_32FC1);
             float[] buff = new float[count];
             for(int i=0; i<count; i++) {
                 float f = fs.get(i);
@@ -134,15 +136,16 @@ public class Converters {
 
     public static void Mat_to_vector_float(Mat m, List<Float> fs) {
         if(fs == null)
-            throw new java.lang.IllegalArgumentException();
-        int cols = m.cols();
-        if(CvType.CV_32FC1 != m.type() ||  m.rows()!=1 )
-            throw new java.lang.IllegalArgumentException();
+            throw new java.lang.IllegalArgumentException("fs == null");
+        int count = m.rows();
+        if( CvType.CV_32FC1 != m.type() ||  m.rows()!=1 )
+            throw new java.lang.IllegalArgumentException(
+            		"CvType.CV_32FC1 != m.type() ||  m.rows()!=1\n" + m);
 
         fs.clear();
-        float[] buff = new float[cols];
+        float[] buff = new float[count];
         m.get(0, 0, buff);
-        for(int i=0; i<cols; i++) {
+        for(int i=0; i<count; i++) {
             fs.add( new Float(buff[i]) );
         }
     }
@@ -151,7 +154,7 @@ public class Converters {
         Mat res;
         int count = (bs!=null) ? bs.size() : 0;
         if(count>0){
-            res = new Mat(1, count, CvType.CV_8UC1); //Point can be saved into double[2]
+            res = new Mat(count, 1, CvType.CV_8UC1);
             byte[] buff = new byte[count];
             for(int i=0; i<count; i++) {
                 byte b = bs.get(i);
@@ -168,7 +171,7 @@ public class Converters {
         Mat res;
         int count = (is!=null) ? is.size() : 0;
         if(count>0){
-            res = new Mat(1, count, CvType.CV_32SC1); //Point can be saved into double[2]
+            res = new Mat(count, 1, CvType.CV_32SC1);
             int[] buff = new int[count];
             for(int i=0; i<count; i++) {
                 int v = is.get(i);
@@ -183,15 +186,16 @@ public class Converters {
 
     public static void Mat_to_vector_int(Mat m, List<Integer> is) {
         if(is == null)
-            throw new java.lang.IllegalArgumentException();
-        int cols = m.cols();
-        if(CvType.CV_32SC1 != m.type() ||  m.rows()!=1 )
-            throw new java.lang.IllegalArgumentException();
+            throw new java.lang.IllegalArgumentException("is == null");
+        int count = m.rows();
+        if( CvType.CV_32SC1 != m.type() ||  m.cols()!=1 )
+            throw new java.lang.IllegalArgumentException(
+            		"CvType.CV_32SC1 != m.type() ||  m.cols()!=1\n" + m);
 
         is.clear();
-        int[] buff = new int[cols];
+        int[] buff = new int[count];
         m.get(0, 0, buff);
-        for(int i=0; i<cols; i++) {
+        for(int i=0; i<count; i++) {
             is.add( new Integer(buff[i]) );
         }
     }
@@ -200,7 +204,7 @@ public class Converters {
         Mat res;
         int count = (rs!=null) ? rs.size() : 0;
         if(count>0){
-            res = new Mat(1, count, CvType.CV_32SC4);
+            res = new Mat(count, 1, CvType.CV_32SC4);
             int[] buff = new int[4*count];
             for(int i=0; i<count; i++) {
                 Rect r = rs.get(i);
@@ -218,15 +222,16 @@ public class Converters {
 
     public static void Mat_to_vector_Rect(Mat m, List<Rect> rs) {
         if(rs == null)
-            throw new java.lang.IllegalArgumentException();
-        int cols = m.cols();
-        if(CvType.CV_32SC4 != m.type() ||  m.rows()!=1 )
-            throw new java.lang.IllegalArgumentException();
+            throw new java.lang.IllegalArgumentException("rs == null");
+        int count = m.rows();
+        if(CvType.CV_32SC4 != m.type() ||  m.cols()!=1 )
+            throw new java.lang.IllegalArgumentException(
+            		"CvType.CV_32SC4 != m.type() ||  m.rows()!=1\n" + m);
 
         rs.clear();
-        int[] buff = new int[4*cols];
+        int[] buff = new int[4*count];
         m.get(0, 0, buff);
-        for(int i=0; i<cols; i++) {
+        for(int i=0; i<count; i++) {
             rs.add( new Rect(buff[4*i], buff[4*i+1], buff[4*i+2], buff[4*i+3]) );
         }
     }
@@ -236,7 +241,7 @@ public class Converters {
         Mat res;
         int count = (kps!=null) ? kps.size() : 0;
         if(count>0){
-            res = new Mat(1, count, CvType.CV_64FC(7));
+            res = new Mat(count, 1, CvType.CV_64FC(7));
             double[] buff = new double[count * 7];
             for(int i=0; i<count; i++) {
                 KeyPoint kp = kps.get(i);
@@ -257,17 +262,18 @@ public class Converters {
 
     public static void Mat_to_vector_KeyPoint(Mat m, List<KeyPoint> kps) {
         if(kps == null)
-            throw new java.lang.IllegalArgumentException();
-        int cols = m.cols();
-        if(CvType.CV_64FC(7) != m.type() ||  m.rows()!=1 )
-            throw new java.lang.IllegalArgumentException();
+            throw new java.lang.IllegalArgumentException("kps == null");
+        int count = m.rows();
+        if( CvType.CV_64FC(7) != m.type() ||  m.cols()!=1 )
+            throw new java.lang.IllegalArgumentException(
+            		"CvType.CV_64FC(7) != m.type() ||  m.cols()!=1\n" + m);
 
         kps.clear();
-        double[] buff = new double[7*cols];
+        double[] buff = new double[7*count];
         m.get(0, 0, buff);
-        for(int i=0; i<cols; i++) {
+        for(int i=0; i<count; i++) {
             kps.add( new KeyPoint( (float)buff[4*i], (float)buff[4*i+1], (float)buff[4*i+2], (float)buff[4*i+3],
-            		               (float)buff[4*i+4], (int)buff[4*i+5], (int)buff[4*i+6] ) );
+                                   (float)buff[4*i+4], (int)buff[4*i+5], (int)buff[4*i+6] ) );
         }
     }
 
@@ -276,7 +282,7 @@ public class Converters {
         Mat res;
         int count = (ds!=null) ? ds.size() : 0;
         if(count>0){
-            res = new Mat(1, count, CvType.CV_64FC1); //Point can be saved into double[2]
+            res = new Mat(count, 1, CvType.CV_64FC1);
             double[] buff = new double[count];
             for(int i=0; i<count; i++) {
                 double v = ds.get(i);