Java：需要优化（快速）方法将整数数组写入FileOutputStream

Searching yields many questions about how to convert an int to byte[]. I have a project with a critical loop that writes a long int[] to a FileOutputStream. FileOutputStream requires a byte[] for writing. I can brute-force different methods; I'm looking for a way to send an int[] directly to a FileOutputStream or the fastest method to convert int[] to byte[] - something like wrapping a buffer. I see ways to wrap a byte[] to convert to int[] and float[]... but none the other way (from int[] to byte[]). Thanks.Searching yields many questions about how to co