Method put

Ports/CLDC11/src/java/util/TreeMap.java:4430–4433

(K key, V value)

    /// if the specified key is `null` and the comparator
    /// cannot handle `null` keys.
    @Override
    public V put(K key, V value) {
        return putImpl(key, value);
    }
    
    private V putImpl(K key, V value) {
        if (root == null) {