为什么Java类型推断在整数数组的集合的构造函数中失败，例如PriorityQueue<int[]>？

import java.util.PriorityQueue;

public class Main {
    public static void main(String[] args) {
        int[][] arrays = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
        PriorityQueue<int[]> queue = new PriorityQueue<>((a, b) -> a[0] - b[0]);
        for (int[] array : arrays) {
            queue.offer(array);
        }
    }
}

import java.util.PriorityQueue;

class IntArrayWrapper implements Comparable<IntArrayWrapper> {
    private final int[] array;

    public IntArrayWrapper(int[] array) {
        this.array = array;
    }

    @Override
    public int compareTo(IntArrayWrapper other) {
        return Integer.compare(this.array[0], other.array[0]);
    }

    public int[] getArray() {
        return array;
    }
}

public class Main {
    public static void main(String[] args) {
        IntArrayWrapper[] wrappers = {
            new IntArrayWrapper(new int[]{1, 2, 3}),
            new IntArrayWrapper(new int[]{4, 5, 6}),
            new IntArrayWrapper(new int[]{7, 8, 9})
        };
        PriorityQueue<IntArrayWrapper> queue = new PriorityQueue<>();
        for (IntArrayWrapper wrapper : wrappers) {
            queue.offer(wrapper);
        }
    }
}