next(android): java3 -> java4

cmake/OpenCVGenAndroidMK.cmake

@@ -48,7 +48,7 @@ if(ANDROID)
   string(REPLACE "opencv_" "" OPENCV_MODULES_CONFIGMAKE "${OPENCV_MODULES_CONFIGMAKE}")
 
   if(BUILD_FAT_JAVA_LIB)
-    set(OPENCV_LIBS_CONFIGMAKE java3)
+    set(OPENCV_LIBS_CONFIGMAKE java4)
   else()
     set(OPENCV_LIBS_CONFIGMAKE "${OPENCV_MODULES_CONFIGMAKE}")
   endif()

doc/tutorials/introduction/android_binary_package/android_ocl_intro.markdown

@@ -144,7 +144,7 @@ Here is a simple Java wrapper for our JNI stuff:
 public class NativeGLRenderer {
     static
     {
-        System.loadLibrary("opencv_java3"); // comment this when using OpenCV Manager
+        System.loadLibrary("opencv_java4"); // comment this when using OpenCV Manager
         System.loadLibrary("JNIrender");
     }
 
@@ -383,7 +383,7 @@ Unfortunately `UMat` keeps OpenCL _buffer_ internally, that can't be wrapped ove
   path/to/cmake.exe -GNinja -DCMAKE_MAKE_PROGRAM="path/to/ninja.exe" -DCMAKE_TOOLCHAIN_FILE=path/to/opencv/platforms/android/android.toolchain.cmake -DANDROID_ABI="armeabi-v7a with NEON" -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON path/to/opencv
   path/to/ninja.exe install/strip
   @endcode
-  To use your own modified `libopencv_java3.so` you have to keep inside your APK, not to use OpenCV Manager and load it manually via `System.loadLibrary("opencv_java3")`.
+  To use your own modified `libopencv_java4.so` you have to keep inside your APK, not to use OpenCV Manager and load it manually via `System.loadLibrary("opencv_java4")`.
 
 Performance notes
 -----------------

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;

samples/android/tutorial-4-opencl/src/org/opencv/samples/tutorial4/NativePart.java

@@ -3,7 +3,7 @@ package org.opencv.samples.tutorial4;
 public class NativePart {
     static
     {
-        System.loadLibrary("opencv_java3");
+        System.loadLibrary("opencv_java4");
         System.loadLibrary("JNIpart");
     }