next(android): java3 -> java4

modules/java/android_sdk/build.gradle.in

@@ -49,7 +49,7 @@
 // - avoid using of "OpenCVLoader.initAsync()" approach - it is deprecated
 //   It may load library with different version (from OpenCV Android Manager, which is installed separatelly on device)
 //
-// - use "System.loadLibrary("opencv_java3")" or "OpenCVLoader.initDebug()"
+// - use "System.loadLibrary("opencv_java4")" or "OpenCVLoader.initDebug()"
 //   TODO: Add accurate API to load OpenCV native library
 //
 //

modules/java/generator/android/java/org/opencv/android/AsyncServiceHelper.java

@@ -376,7 +376,7 @@ class AsyncServiceHelper
             else
             {
                 // If the dependencies list is not defined or empty.
-                String AbsLibraryPath = Path + File.separator + "libopencv_java3.so";
+                String AbsLibraryPath = Path + File.separator + "libopencv_java4.so";
                 result = loadLibrary(AbsLibraryPath);
             }
 

modules/java/generator/android/java/org/opencv/android/StaticHelper.java

@@ -92,7 +92,7 @@ class StaticHelper {
         else
         {
             // If dependencies list is not defined or empty.
-            result = loadLibrary("opencv_java3");
+            result = loadLibrary("opencv_java4");
         }
 
         return result;