Binary Search Tree balance
<p>I'm working on a BST that will balance nodes according to their hits and their elements, where a hit is an attribute that increases when a node is found using find(), contains() etc.
The root of the tree is the node with the highest number of hits.
All of my code is alright, except the balance method that will balance the tree after I increment a hit.
I'm using modified AVL Tree rotate methods(<a href="https://users.cs.fiu.edu/~weiss/dsj2/code/weiss/nonstandard/Rotations.java" rel="nofollow">https://users.cs.fiu.edu/~weiss/dsj2/code/weiss/nonstandard/Rotations.java</a>) where I don't compare the elements, rather the hits of a node. 
I can't get it to work no matter what I try, I can't get the tree to balance correctly
Here is my code so far:</p>

<pre><code> public void balanceTree() {
    balanceTree(root);
}

private void balanceTree(Node node) {

    if (node.left.getHits() &lt;= node.getHits() &amp;&amp; node.right.getHits() &lt;= node.getHits()) {
        return;
    } else if (node.left.getHits() &gt; node.getHits()) {
        node = rotateWithLeftChild(node);

    } else if (node.right.getHits() &gt; node.getHits()) {
        node = rotateWithRightChild(node);

    }


}

static Node rotateWithLeftChild(Node k2) {
    Node k1 = k2.left;
    k2.left = k1.right;
    k1.right = k2;
    return k1;
}

static Node rotateWithRightChild(Node k1) {
    Node k2 = k1.right;
    k1.right = k2.left;
    k2.left = k1;
    return k2;
}
</code></pre>

<p>Right now the balance method simply deletes the node its supposed to rotate, I tried debugging it but couldn't see what's wrong.</p>