fixing #3027 (searching JNI even if no ant), fixing java tests status message (ON/OFF)

CMakeLists.txt

@@ -402,7 +402,7 @@ if(ANDROID)
   if(NOT ANDROID_TOOLS_Pkg_Revision GREATER 13)
     message(WARNING "OpenCV requires Android SDK tools revision 14 or newer. Otherwise tests and samples will no be compiled.")
   endif()
-elseif(ANT_EXECUTABLE)
+else()
   find_package(JNI)
 endif()
 
@@ -830,7 +830,7 @@ status("    ant:"           ANT_EXECUTABLE      THEN "${ANT_EXECUTABLE} (ver ${A
 if(NOT ANDROID)
   status("    JNI:"         JNI_INCLUDE_DIRS    THEN "${JNI_INCLUDE_DIRS}"                                       ELSE NO)
 endif()
-status("    Java tests:"    BUILD_TESTS AND (NOT ANDROID OR CAN_BUILD_ANDROID_PROJECTS)                 THEN YES ELSE NO)
+status("    Java tests:"    BUILD_TESTS AND (CAN_BUILD_ANDROID_PROJECTS OR HAVE_opencv_java)            THEN YES ELSE NO)
 
 # ========================== documentation ==========================
 if(BUILD_DOCS)