Divide two integers without using multiplication, division and mod operator in java

I write down a code which find out quotient after dividing two number but without using multiplication,division or mod operator.

My code

public int divide(int dividend, int divisor) {

    int diff=0,count=0;
    int fun_dividend=dividend;
    int fun_divisor=divisor;
    int abs_dividend=abs(dividend);
    int abs_divisor=abs(divisor);

    while(abs_dividend>=abs_divisor){
        diff=abs_dividend-abs_divisor;

        abs_dividend=diff;
        count++;

    }

    if(fun_dividend<0 && fun_divisor<0){
        return count;
    }
    else if(fun_divisor<0||fun_dividend<0) {
        return (-count);
    }

    return count;

}

My code passes the test cases like dividend=-1, divisor=1 or dividend=1 and divisor=-1. But it cannot pass the test case like dividend = --2147483648 and divisor =-1. However I have a if statement when both inputs are negative.

  if(fun_dividend<0 && fun_divisor<0){
        return count;
    }

When my inputs are -2147483648 and -1 it returned zero. I debugged my code and find out that it cannot reach the the inner statements of while loop. It just check the while loop and terminated and execute

 if(fun_dividend<0 && fun_divisor<0){
        return count;
    }

It is very obvious, both inputs are negative, so I was using Math.abs function to make them positive. But when I try to see the values of variables abs_dividend and abs_divisor they show me negative values.

How could I solve the bug?

Thank you in advance.