JNI integration problem

cocos2d-x C++
#1

I’m trying to integrate https://gist.github.com/emil2k/5130324 this to use in c++ code. I tried http://stnguyen.com/cocos2d-x/call-java-functions-from-cpp.html this but getting compilation error. Can anybody explain how to do it briefly?

#2

Here’s the error log:

error: 'JniMethodInfo' is not a member
     of 'cocos2d'
         cocos2d::JniMethodInfo t;

…\proj.android\src\com\emil\android\util\Connectivity.java is the path of the class.

#3 
cocos2d::JniMethodInfo t;
    bool returnValue = false;
    JniHelper::getStaticMethodInfo(t, "com/emil/android/util/Connectivity", "isConnected", "()Z");
    jboolean jReturnValue = t.env->CallStaticBooleanMethod(t.classID, t.methodID);
    returnValue = (bool)jReturnValue;
    t.env->DeleteLocalRef(t.classID);

Now the class is not found.

#4 
#include "jni.h"
#include "platform/android/jni/JniHelper.h"

bool checkConn = false;
    cocos2d::JniMethodInfo t;
    if (cocos2d::JniHelper::getStaticMethodInfo(t, "com/emil/android/util/Connectivity",
                                        "isConnected", "()Z")) {
        jboolean result = t.env->CallStaticBooleanMethod(t.classID, t.methodID);
        if (result == JNI_TRUE) {
            checkConn = true;

        } else {
            checkConn = false;
        }
    }
    if(checkConn){
        log("baglanti: connected");
    }else{
        log("baglanti: not connected");
    }

This always returns false(not connected).