A lot of javadoc warnings duting javadoc build (Bug #2647) issue fixed

Black list of entities, that are not implemented in Java API added to javadoc generator

modules/java/generator/src/java/android+CameraBridgeViewBase.java

@@ -344,7 +344,7 @@ public abstract class CameraBridgeViewBase extends SurfaceView implements Surfac
      * @param supportedSizes
      * @param surfaceWidth
      * @param surfaceHeight
-     * @return
+     * @return optimal frame size
      */
     protected Size calculateCameraFrameSize(List<?> supportedSizes, ListItemAccessor accessor, int surfaceWidth, int surfaceHeight) {
         int calcWidth = 0;

modules/java/generator/src/java/android+OpenCVLoader.java

@@ -31,7 +31,7 @@ public class OpenCVLoader
      * @param Version OpenCV library version.
      * @param AppContext application context for connecting to the service.
      * @param Callback object, that implements LoaderCallbackInterface for handling the connection status.
-     * @return Returns true if initialization of OpenCV is successful.
+     * @return Returns true if initialization of OpenCV is successful.
      */
     public static boolean initAsync(String Version, Context AppContext,
             LoaderCallbackInterface Callback)