Removing duplication from my 2-opt neighbourhood function

I am trying to implement a function which generates the two-opt neighbourhood for a given tour in the tsp problem but currently it does not generate values as expected it keeps duplicating the intial value, I think I know where the code is going wrong but I'm not sure how to correct it.

public void twoOptNeighbourhoodGenerationFunction() {
    
    int[] givenRoute = new int[] {1,2,3,4};
    for(int i = 1; i < (givenRoute .length); i ++) {
        for(int j = i; j < givenRoute .length; j ++) {
            int[] currentRoute = Arrays.copyOf(givenRoute, givenRoute.length);
              int temp =   currentRoute [i];
              currentRoute [i] = currentRoute [j];
              currentRoute [j] = temp;
              System.out.println(Arrays.toString());
        }
    
    }
}

I think the following line below is the one causing the issue

int[] currentRoute = Arrays.copyOf(givenRoute, givenRoute.length);

This is because everytime I go through the loop it recreates the original array and prints it out, I need a way to stop this original array from printing

This the current output I get

[1, 2, 3, 4]
[1, 3, 2, 4]
[1, 4, 3, 2]
[1, 2, 3, 4] 
[1, 2, 4, 3]
[1, 2, 3, 4]

This is the output I would like

[1, 2, 3, 4]
[1, 3, 2, 4]
[1, 4, 3, 2]
[1, 2, 4, 3]

I have though about using an if statement to compare the currentRoute to the givenList and only print if it is different but I was wondering if there is a better way of doing things.